If yes, does it have the same meaning of vacuum?
Both the sites define the same meaning, but the spelling differs.
Some dictionaries also have an entry for vaccum which links to vacuum.
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Clearly it does, because you and the second website you link to use it. If you’re asking if it’s the normal spelling for the word describing a space empty of matter, then it is not. The normal spelling is vacuum. The Corpus of Contemporary American English has 2 records for it, against 5810 for vacuum. The figures for the British National Corpus are 1 and 919.