Perhaps you should try some spelling variations:
22radiation injuries » radiation injury, rotation injuries
radiation injuries » radiation injury, radiation induced
friction injuries » frictions inquiries, friction induces, junction injuries
2f therapy » 2 therapy, rf therapy, tnf therapy
amputation » imputation, computation, computations

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