Perhaps you should try some spelling variations:
hermann book » german book, hermann broch, hermann lohr
goal robert » gal robert, deal robert, fogel robert
robert j » robert _
a robert » 3 robert, dr robert, a robust
robert e » robert _
ebooksss » ebooks
eebooksss » eebooks

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( goal robert j. hermann book ) or ( a robert e. heitmann ((ebooksss or ebooksss) or eebooksss) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( goal robert j. hermann book ) OR ( a robert e. heitmann ((ebooksss OR ebooksss) OR eebooksss) )).
• Adding a wildcard symbol may retrieve word variants: (( goal robert j. hermann book ) or ( a robert e. heitmann ((ebooksss or ebooksss) or eebooksss) ))*.