Perhaps you should try some spelling variations:
harvard food » forward food, harvard home, larvae food
bad studies » based studies, eadi studies, oecd studies
from series » rom series, from services, forum series
cold urban » clld urban, world urban, good urban
food bad » good bad, food based, food bank
book » books, ebook

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( harvard food bad studies from series. ) or ( harvard cold urban studies book series. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( harvard food bad studies from series. ) OR ( harvard cold urban studies book series. )).
• Adding a wildcard symbol may retrieve word variants: (( harvard food bad studies from series. ) or ( harvard cold urban studies book series. ))*.