Perhaps you should try some spelling variations:
"the emperor's voice in microsoft" » "the emperor's life in microsoft", "the emperor's justice in microsoft", "the emperor's service in microsoft"
"the expert's guide in microsoft" » "the expert guide in microsoft"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("the expert's guide in microsoft") OR ((("the emperor's voice in microsoft") OR ("the emperor's forces in microsoft")))).
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