Perhaps you should try some spelling variations:
rand » brand, band, hand
grand » gbrand, gband, ghand, brand
rank » ranks, frank, bank
iranktd » irankstd, ifranktd, ibanktd
grantd » granted, grants, grantsd
grant » grants
grawd » graw, grad, grawe
grain » brain, rain
grains » brains, rains
brains » brain, trains, drains

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 grand) OR rank) OR hard) OR (had OR land)) OR (bond OR bonds)) OR ((((((grantd OR grant) OR stand) OR iranktd) OR (grawd OR raw)) OR grain) OR (grains OR brains))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((rand or grand) or rank) or hard) or (had or land)) or (bond or bonds)) or ((((((grantd or grant) or stand) or iranktd) or (grawd or raw)) or grain) or (grains OR brains))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((((rand or grand) or rank) or hard) or (had or land)) or (bond or bonds)) or ((((((grantd or grant) or stand) or iranktd) or (grawd or raw)) or grain) or (grains OR brains))) counterinsurgency study ;*.