Perhaps you should try some spelling variations:
rand » brand, sand, rank
grand » gbrand, gsand, grank, brand, irand, grayd, trand
grandtd » gbrandtd, gsandtd, granktd, brandtd, irandtd, graydtd, trandtd
band » bank
bond » bonds
gsand » sand
graw » grow, grew
draw » draws
gran » iran, gray, tran
grant » irant, grayt, trant, grants
graint » geraint, grains, gradient, braint, raint
grain » brain, rain

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 (hand OR hard)) OR (had OR land)) OR (band OR bond)) OR (((((grand OR gsand) OR (grandtd OR graydtd)) OR ((graw OR raw) OR draw)) OR gran) OR ((graint OR grant) OR grain))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (hand or hard)) or (had or land)) or (band or bond)) or (((((grand or gsand) or (grandtd or graydtd)) or ((graw OR raw) or draw)) or gran) or ((graint or grant) or grain))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (hand or hard)) or (had or land)) or (band or bond)) or (((((grand or gsand) or (grandtd or graydtd)) or ((graw OR raw) or draw)) or gran) or ((graint or grant) or grain))) counterinsurgency study ;*.