Hillary's emails include back and forth with Jared Cohen, a former State department employee who now heads a Google subsidiary called Jigsaw (formerly 'Google Ideas'). That should be enough to figure out what search terms to use. :)
So "Google works closely with Hillary" is sourced to Hillary in the past corresponding with a former employee of hers who is now heading a Google subsidiary? That's borderline tin-foil-hat levels of conspiracy theory. By that logic, Google "works closely" with Oracle via the connection to Eric Schmidt; that's just as believable if you ignore the messy lawsuits they're engaged in.
If you actually read the details, as I indicated one should, Hillary's email archive includes collaboration with Jared Cohen WHILE he works at Google, on foreign affairs related projects.
That's still extrapolating from "Hillary corresponds with a past staffer who now works for Google" to "Google works closely with Hillary." I feel like I'd need to be seeking out conspiracy to believe there's more to it than that.