Perhaps you should try some spelling variations:
local poverty » global poverty, total poverty, rural poverty
poverty e » poverty _, poverty a, poverty m
a robust » _ robust
robust e » robust _, robert e
heitmann » heinemann, hermann, hartmann
heimann » hermann, heinemann
book » ebook
books » ebooks

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 e. (heitmann OR heimann) book ) or ( a robust e. (hellman or helpman) books ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( local poverty e. (heitmann OR heimann) book ) OR ( a robust e. (hellman OR helpman) books ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( local poverty e. (heitmann OR heimann) book ) or ( a robust e. (hellman or helpman) books ))*".