Perhaps you should try some spelling variations:
"a robert e. heilmann book" » "gal robert e. heilmann book", "a robust e. heilmann book", "a robert _. heilmann book", "a robert j. heilmann book", "a robert e. heimann book", "a robert e. heitmann book", "a robert e. hermann book", "a robert e. heilmann books", "a robert e. heilmann ebook"
"a robert b. heinemann ebooks" » "gal robert b. heinemann ebooks", "a robust b. heinemann ebooks", "a robert _. heinemann ebooks", "a robert j. heinemann ebooks", "a robert a. heinemann ebooks", "a robert b. heinemann ebookss", "a robert b. heinemann eebooks", "a robert b. heinemann books", "a robert b. heinemann ebook"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("a robert e. heilmann book") or ("a robert b. heinemann ebooks"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("a robert e. heilmann book") OR ("a robert b. heinemann ebooks")).
• Removing quotes may allow a broader search: (( a robert e. heilmann book ) or ( a robert b. heinemann ebooks )).
• Adding a wildcard symbol may retrieve word variants: (("a robert e. heilmann book") or ("a robert b. heinemann ebooks"))*.