Perhaps you should try some spelling variations:
22radiation injuries » radiation injury, friction injuries
radiation injuries » radiation injury, radiation induced
rotation injuries » luxation injuries, motion injuries, extraction injuries
2f therapy » 2 therapy, rf therapy, tnf therapy
amputation » imputation, computation, reputation

Try widening your search to All Fields.

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: %((((22radiation injuries) OR (((rotation injuries) OR (amputation injuries))))) OR (radiation injuries)) %2f therapy%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22radiation injuries) or (((rotation injuries) OR (amputation injuries))))) or (radiation injuries)) %2f therapy%22".
• Adding a wildcard symbol may retrieve word variants: %((((22radiation injuries) or (((rotation injuries) OR (amputation injuries))))) or (radiation injuries)) %2f therapy%22*.