Perhaps you should try some spelling variations:
local poverty » global poverty, rural poverty
total poverty » global poverty, rural poverty, national poverty
a robust » _ robust
robust e » robust _, robert e
book » books, ebook
ebooks » ebookss, eebooks, books, ebook
heilman » heilmann, hellman, heitmann

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((local poverty) OR (total poverty)) _. hermann book ) or ( a robust e. heilman ebooks ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((local poverty) OR (total poverty)) _. hermann book ) OR ( a robust e. heilman ebooks ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((local poverty) OR (total poverty)) _. hermann book ) or ( a robust e. heilman ebooks ))*".