Perhaps you should try some spelling variations:
"a robert e. hermann broch" » "a robert e. hermann brochs", "3 robert e. hermann broch", "dr robert e. hermann broch", "a robust e. hermann broch", "a robert _. hermann broch", "a robert j. hermann broch"
"a robert b. german books" » "a robert b. german food", "a robert b. german foods", "3 robert b. german books", "dr robert b. german books", "a robust b. german books", "a robert _. german books", "a robert j. german books", "a robert a. german books"
"a robert b. german book" » "a robert b. german food", "3 robert b. german book", "dr robert b. german book", "a robust b. german book", "a robert _. german book", "a robert j. german book", "a robert a. german book"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("a robert e. hermann broch") OR ((("a robert b. german book") OR ("a robert b. german books"))))~.
• Removing quotes may allow a broader search: (( a robert e. hermann broch ) or ((( a robert b. german book ) or ( a robert b. german books ))))~.
• Adding a wildcard symbol may retrieve word variants: (("a robert e. hermann broch") or ((("a robert b. german book") or ("a robert b. german books"))))*.