Perhaps you should try some spelling variations:
"The emperor's voice in web developpement" » "The emperor's forces in web developpement", "The emperor's life in web developpement", "The emperor's justice in web developpement"
"the expert's guide in web development" » "the expert guide in web development"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"The emperor's voice in web developpement\") OR (\"the expert's guide in web development\"))".
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