Where did you read that? Jesus' Hebrew name is Yeshua, or Yehoshua/Jehoshua and it means "YHWH saved" or "YHWH is salvation" according to Strong's and the Online Bible Greek Lexicon. From the Wikipedia article for Yeshua:
The name יֵשׁוּעַ, Yeshua (transliterated in the English Old Testament as Jeshua), is a late form of the Biblical Hebrew name יְהוֹשֻׁעַ, Yehoshua (Joshua), and spelled with a waw in the second syllable.
Yeshua in Hebrew is a verbal derivative from "to rescue", "to deliver". Among the Jews of the Second Temple period, the Biblical Aramaic/Hebrew name יֵשׁוּעַ, Yēšūaʿ was common: the Hebrew Bible mentions several individuals with this name – while also using their full name Joshua. This name is a feature of biblical books written in the post-Exilic period (Ezra, Nehemiah, and Chronicles) and was found in the Dead Sea Scrolls, though Haggai and Zechariah prefer the spelling Joshua. Strong's Concordance connects the name יֵשׁוּעַ, Yēšūaʿ, in the English form Jeshua (as used in multiple instances in Ezra, Nehemiah, and 1 and 2 Chronicles), with the verb "to deliver" (or, "to rescue"). It is often translated as "He saves," to conform with Matthew 1:21: "She will bear a Son; and you shall call His name Jesus, for He will save His people from their sins".
The name Yehoshua has the form of a compound of "Yeho-" and "shua": Yeho- (יְהוֹ) is another form of יָהו, Yahu, a theophoric element standing for the name of God, יהוה (the Tetragrammaton YHWH, sometimes transcribed into English as Yahweh), and שׁוּעַ, shua' is a noun meaning "a cry for help", "a saving cry", that is to say, a shout given when in need of rescue.
Whereas the article for name you have come up with, Yahshuah, says:
The pentagrammaton (Greek: πενταγράμματον) or Yahshuah (Hebrew: יהשוה) is a constructed form of the Hebrew name of Jesus originally found in the works of Athanasius Kircher, Johann Baptist Grossschedel (1619) and other late Renaissance esoteric sources. It is to be distinguished from the name Yahshua found in the works of the Sacred Name Movement in the 1960s, though there has been some conflation or confusion between the two. The pentagrammaton Yahshuah has no support in archeological findings, such as the Dead Sea Scrolls or inscriptions, nor in rabbinical texts as a form of Joshua. Scholarship generally considers the original form of Jesus to be Yeshua, a Hebrew Bible form of Joshua.
The essential idea of the pentagrammaton is of an alphabetic consonantal framework Y-H-Sh-W-H, which can be supplied with vowels in various ways. (Also, the "W" can be converted into a "U" or "V", since the Hebrew letter ו waw writes either a [w] consonant sound—later on pronounced [v]—or a long vowel sound: see Mater Lectonis.)
The first ones to use a name of Jesus something like "Yahshuah" were Renaissance occultists. In the second half of the 16th century, when knowledge of Biblical Hebrew first began to spread among a significant number of Christians, certain esoterically minded or occultistic circles came up with the idea of deriving the Hebrew name of Jesus by adding the Hebrew letter shin ש into the middle of the Tetragrammaton divine name yod-he-waw-he יהוה to produce the form yod-he-shin-waw-he יהשוה.
