Perhaps you should try some spelling variations:
intensity conflicts » identity conflict
military sciences » military science, auxiliary sciences, military defence
military since » military science, military space, military site
military sites » military systems, military united, military state

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: %22low-intensity conflicts %((military since) OR (((military sciences) OR (military sites))))%29%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22low-intensity conflicts %((military since) or (((military sciences) OR (military sites))))%29%22".
• Adding a wildcard symbol may retrieve word variants: %22low-intensity conflicts %((military since) or (((military sciences) OR (military sites))))%29%22*.