Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, grant, brand, grantd, irand, grawd
band » bank
bond » bonds
grawt » grant, graw, graft
grain » brain, gbrain, gmain, ggain
gbrain » brain, gbbrain, gbmain, gbgain
ggained » gained, grained, regained
grawe » grace, graw, grave
grade » trade
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 hard) OR (had OR land)) OR (band OR bond)) OR ((((((grand OR grawt) OR ((grain OR gbrain) OR ggained)) OR iranttd) OR ((grawe OR grade) OR grow)) OR gran) OR rain)) 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 bond)) or ((((((grand or grawt) or ((grain or gbrain) or ggained)) or iranttd) or ((grawe OR grade) or grow)) or gran) or rain)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or (band or bond)) or ((((((grand or grawt) or ((grain or gbrain) or ggained)) or iranttd) or ((grawe OR grade) or grow)) or gran) or rain)) counterinsurgency study ;*.