Perhaps you should try some spelling variations:
22radiation induced » irradiation induced, radiations induced, ratiation induced
friction injuries » frictions inquiries, friction induces, junction injuries
2f therapy » 2 therapy, rf therapy, tnf therapy
amputation » computation, reputation, computations

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