Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, grant, brand, grantd, irand, grayd
grade » trade
gran » grant, iran, gray
graw » grow, raw, grew
draw » draws, raw
brain » bmain, bgain, brail
rain » main, gain, rail
grain » gmain, ggain, grail

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 (((((frank OR grand) OR gbandtd) OR grade) OR ((gran OR graw) OR draw)) OR ((brain 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 (((((frank or grand) or gbandtd) or grade) or ((gran OR graw) or draw)) or ((brain 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 (((((frank or grand) or gbandtd) or grade) or ((gran OR graw) or draw)) or ((brain or rain) or grain))) counterinsurgency study ;*.