Have had similar trouble with Windows 7 search (am using Agent Ransack aka File Locator).
Yes, sometimes Windows 7 search results in 1000's of unwanted hits, were Agent Ransack has no problem whatsoever. For very special searches, Agent Ransack accepts " (like "(1)" ) and always returns exact
results. Windows 7 should
be able to accept " but... Windows 7 search exact phrase
I have investigated this issue, and found this is a known issue. I just reported this to our feedback team.
Didn't anyone think this one through during the planning stages ?
I could list many, many occurrences were Windows 7 fails miserably (indexed or not) giving tons of wrong hits, or it may
of what I search for, after needing some tedious and irritating filter setups to imitate what Agent Ransack (and surely many other dedicated programs) does without any extra work, doubt or hiccups.