Perhaps you should try some spelling variations:
radiation injuries » radiation induced
radiation injury » radiation induced
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: %((((22((radiation injuries) OR (radiation injury))) OR ((amputation OR reputation) injuries))) OR (((radiation injuries) OR (radiation injury)))) %2f therapy%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22((radiation injuries) OR (radiation injury))) or ((amputation or reputation) injuries))) or (((radiation injuries) OR (radiation injury)))) %2f therapy%22".
• Adding a wildcard symbol may retrieve word variants: %((((22((radiation injuries) OR (radiation injury))) or ((amputation or reputation) injuries))) or (((radiation injuries) OR (radiation injury)))) %2f therapy%22*.