Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, brand, irand, grawd, grayd
band » bank, bond
grawd » graw, grad
grant » grants, irant, grawt, grayt
grawe » grade, grace, graw
gran » iran, graw, gray
grain » brain, gbrain, gmain, ggain
grains » brains, gbrains, gmains, ggains
ggain » gain, again
rain » brain, main, gain
gbrains » gbbrains, gbmains, gbgains, brains

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((rand or hard) or (had or land)) or (band or bonds)) or (((((grawd or (grand or grant)) or gsandtd) or grawe) or ((gran OR grain) or (ggain or rain))) or (grains or gbrains))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR hard) OR (had OR land)) OR (band OR bonds)) OR (((((grawd OR (grand OR grant)) OR gsandtd) OR grawe) OR ((gran OR grain) OR (ggain OR rain))) OR (grains OR gbrains))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or hard) or (had or land)) or (band or bonds)) or (((((grawd or (grand or grant)) or gsandtd) or grawe) or ((gran OR grain) or (ggain or rain))) or (grains or gbrains))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or (band or bonds)) or (((((grawd or (grand or grant)) or gsandtd) or grawe) or ((gran OR grain) or (ggain or rain))) or (grains or gbrains))) counterinsurgency study ;*.