Perhaps you should try some spelling variations:
"a robert b. heimann book" » "a robert b. german book", "3 robert b. heimann book", "dr robert b. heimann book", "a robot b. heimann book", "a robert _. heimann book", "a robert e. heimann book", "a robert j. heimann book"
"a robust b. heimann book" » "a robust b. german book", "_ robust b. heimann book", "a robust _. heimann book", "a robust a. heimann book", "a robust job. heimann book"
"a robert b. hermann book" » "a robert b. german book", "a robert b. hermann broch", "a robert b. hermann lohr", "3 robert b. hermann book", "dr robert b. hermann book", "a robot b. hermann book", "a robert _. hermann book", "a robert e. hermann book", "a robert j. hermann book"

Try widening your search to All Fields.

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 b. heimann book") OR ("a robert b. hermann book"))) or ("a robust b. heimann book"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("a robert b. heimann book") OR ("a robert b. hermann book"))) OR ("a robust b. heimann book")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"a robert b. heimann book\") OR (\"a robert b. hermann book\"))) or (\"a robust b. heimann book\"))".
• Removing quotes may allow a broader search: (((( a robert b. heimann book ) OR ( a robert b. hermann book ))) or ( a robust b. heimann book )).
• Adding a wildcard symbol may retrieve word variants: (((("a robert b. heimann book") OR ("a robert b. hermann book"))) or ("a robust b. heimann book"))*.