Perhaps you should try some spelling variations:
rand » brand, hand, rank
grand » gbrand, ghand, grank, grant, brand, grantd, irand, grawd
sand » stand, san, hand
band » bank
bond » bonds
grawt » grant, graw, graft
grain » brain, gbrain, gmain, ggain
grained » brained, gained, trained, strained, gbrained, gmained, ggained
gbrain » brain, gbbrain, gbmain, gbgain
grawe » grade, grace, graw
gran » grant, iran, graw
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 sand) OR hard) OR (had OR land)) OR (band OR bond)) OR ((((((grand OR grawt) OR (((grain OR gbrain) OR gbrain) OR grained)) OR iranttd) OR (grawe OR grow)) OR gran) OR rain)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand OR sand) or hard) or (had or land)) or (band or bond)) or ((((((grand or grawt) or (((grain or gbrain) or gbrain) or grained)) or iranttd) or (grawe or grow)) or gran) or rain)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand OR sand) or hard) or (had or land)) or (band or bond)) or ((((((grand or grawt) or (((grain or gbrain) or gbrain) or grained)) or iranttd) or (grawe or grow)) or gran) or rain)) counterinsurgency study ;*.