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

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 (friction injuries))) OR (rotation 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 (rotation injuries))) or (radiation injuries)) %2f therapy%22".
• Adding a wildcard symbol may retrieve word variants: %((((((22radiation injuries) OR (friction injuries))) or (rotation injuries))) or (radiation injuries)) %2f therapy%22*.