Hi. Google apparently does not have the search operators "XOR", "NAND",
or "NOR". I tried to program around this, but was unable to obtain
valid search results... anybody have suggested hacks to get around this
on Google Search?
(mathematics XOR science) = 236,000 search results
(mathematics OR science) = 3,810,000,000 search results
(mathematics science) = 429,000,000 search results
(mathematics +science) = 352,000,000 search results
(mathematics AND science) = 348,000,000 search results
(mathematics OR science) -(mathematics +science) = 636,000,000 search
results
Logically, if Google Search were accurate, the values of the two sets
of searches should be equal:
(m OR s) = 3,810M
((m OR s) -(m +s)) + (m +s) = 636M + 352M = 988M
3,810M != 988M
Also, I tried to query the set of everything on Google, and came up
with nonsensical (albeit expected) results:
(everything) = 1,810,000,000 search results
(-everything) = 10 search results
Theoretically, this query should yield every website indexed/searchable
by Google. Is there another way to find out how many sites are indexed
on Google, or how many sites Google has indexed that don't contain the
terms P or Q?
Thanks.
