Perhaps you should try some spelling variations:
projection control » protection control, protection controls, production control
projective control » prospective control, proactive control, perspective control
disturbance-rejection » disturbance-injection

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: (( disturbance-rejection control ) OR ( disturbance-((projection control) OR (projective control)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( disturbance-rejection control ) or ( disturbance-((projection control) OR (projective control)) ))".
• Adding a wildcard symbol may retrieve word variants: (( disturbance-rejection control ) or ( disturbance-((projection control) OR (projective control)) ))*.