Perhaps you should try some spelling variations:
prisoners delivered » prisons delivered, prisoners derived, mariners delivered
defining elements » finding elements, learning elements, deleting elements
defined elements » prefixed elements, mixed elements, defined patients
12 prisoners » _ prisoners, 8 prisoners, ex prisoners
get press » get process, great press, cert press

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( 12 prisoners delivered placenta ) OR ( get press ((defined elements) OR (defining elements)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( 12 prisoners delivered placenta ) or ( get press ((defined elements) OR (defining elements)) ))".
• Adding a wildcard symbol may retrieve word variants: (( 12 prisoners delivered placenta ) or ( get press ((defined elements) OR (defining elements)) ))*.