Perhaps you should try some spelling variations:
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"_ robert b. heitmann ebooks" » "_ robert _. heitmann ebooks", "_ robert e. heitmann ebooks", "_ robert a. heitmann ebooks", "_ robert b. heitmann ebookss", "_ robert b. heitmann eebooks", "_ robert b. heinemann ebooks", "_ robert b. hermann ebooks", "_ robert b. hartmann ebooks", "_ robert b. heitmann books", "_ robert b. heitmann ebook"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("gail robert j. heimann book") OR ("_ robert b. heitmann ebooks"))~.
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