Perhaps you should try some spelling variations:
practitioner literature » practitioner signature, practice literature, practices literature
practitioners summary » practices summary
practitioner library » practitioners primary, practitioner may, practitioner inquiry
legal practitioner » legal practitioners, legal practitioner's, lean practitioner
criminal legal » critical legal, criminology legal

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: (( international criminal law ((practitioner library) OR (practitioners summary)) ) OR ((( international criminal legal ((practitioner library) OR (practitioners summary)) ) OR ( international criminal legal practitioner literature )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( international criminal law ((practitioner library) OR (practitioners summary)) ) or ((( international criminal legal ((practitioner library) OR (practitioners summary)) ) or ( international criminal legal practitioner literature ))))".
• Adding a wildcard symbol may retrieve word variants: (( international criminal law ((practitioner library) OR (practitioners summary)) ) or ((( international criminal legal ((practitioner library) OR (practitioners summary)) ) or ( international criminal legal practitioner literature ))))*.