Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, irand, grawd, grayd, brand
grayt » gray, graft
grant » grants, irant, grawt, grayt
grace » grade, race
gran » iran, graw, gray
draw » draws, raw
brail » brazil, brasil, brain, bmail
rail » mail
rain » brain, main, gain
grain » gbrain, gmain, ggain, brain

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 (band OR bank)) OR (had OR land)) OR (bond OR bonds)) OR (((((grayt OR grant) OR gbandtd) OR grace) OR ((gran OR grand) OR draw)) OR (((brail OR rail) OR rain) OR grain))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (band or bank)) or (had or land)) or (bond or bonds)) or (((((grayt OR grant) or gbandtd) or grace) or ((gran or grand) or draw)) or (((brail or rail) or rain) or grain))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (band or bank)) or (had or land)) or (bond or bonds)) or (((((grayt OR grant) or gbandtd) or grace) or ((gran or grand) or draw)) or (((brail or rail) or rain) or grain))) counterinsurgency study ;*.