Perhaps you should try some spelling variations:
rand » brand, sand, rank
grand » gbrand, gsand, grank, grant, brand
band » bond
hand » hard
grainy » grain, grains, rainy, gbrainy, gmainy, ggainy
rate » rates
braint » brain, brains, brant, bsaint, brainy, bbraint, bmaint, bgaint
raint » saint, rainy, rains, braint, maint, gaint
rain » brain, main, gain

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: (((((rand OR band) OR hand) OR (had OR land)) OR (bank OR bonds)) OR (((((grainy OR granted) OR granktd) OR rate) OR (grand OR grow)) OR (((braint OR bmaint) OR raint) OR rain))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand OR band) or hand) or (had or land)) or (bank or bonds)) or (((((grainy or granted) or granktd) or rate) or (grand or grow)) or (((braint or bmaint) or raint) or rain))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand OR band) or hand) or (had or land)) or (bank or bonds)) or (((((grainy or granted) or granktd) or rate) or (grand or grow)) or (((braint or bmaint) or raint) or rain))) counterinsurgency study ;*.