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
eebookss » ebooks

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 eebookss) ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( goal robert j. hermann book ) OR ( a robert e. heitmann ((ebooksss OR ebooksss) OR eebookss) ))".
• Adding a wildcard symbol may retrieve word variants: (( goal robert j. hermann book ) OR ( a robert e. heitmann ((ebooksss OR ebooksss) OR eebookss) ))*.