Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, grant, brand, grantd, irand, grayd
irand » ibrand, ihand, isand, brand, iran, irani
rank » frank, bank
ranks » franks, banks
band » bank, bond
gsand » sand
grawd » grad, grawe, growd, drawd, grewd
graw » grow, draw, grew
gran » grant, iran, gray
grain » brain, gbrain, gmain, ggain
ggain » gain, again
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 (rank OR ranks)) OR hard) OR (had OR land)) OR (band OR bonds)) OR ((((((grand OR gsand) OR irand) OR gbanktd) OR (grawd OR (graw OR raw))) OR (gran OR (grain OR ggain))) OR rain)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or (rank or ranks)) or hard) or (had or land)) or (band or bonds)) or ((((((grand or gsand) or irand) or gbanktd) or (grawd or (graw or raw))) or (gran or (grain OR ggain))) or rain)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand or (rank or ranks)) or hard) or (had or land)) or (band or bonds)) or ((((((grand or gsand) or irand) or gbanktd) or (grawd or (graw or raw))) or (gran or (grain OR ggain))) or rain)) counterinsurgency study ;*.