Perhaps you should try some spelling variations:
hermann book » german book, hermann broch, hermann lohr
gail robert » gal robert, hall robert, ball robert
robert j » robert _, robert e
a robust » _ robust
robust e » robust _, robust a, robust end
heilman » heilmann, hellman, helman
eeebooks » redbooks, texbooks

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( gail robert j. hermann book ) or ( a robust e. heilman ((ebooks OR ebookss) or eeebooks) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( gail robert j. hermann book ) OR ( a robust e. heilman ((ebooks OR ebookss) OR eeebooks) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( gail robert j. hermann book ) or ( a robust e. heilman ((ebooks OR ebookss) or eeebooks) ))".
• Adding a wildcard symbol may retrieve word variants: (( gail robert j. hermann book ) or ( a robust e. heilman ((ebooks OR ebookss) or eeebooks) ))*.