Perhaps you should try some spelling variations:
rand » brand, hand
grand » gbrand, ghand, grant, brand, grantd, graind, irand
sand » san, hand
ihand » hand
grays » gray, grass, rays
gmain » main, gain, grain
brain » bmain, bgain, brail
rain » main, gain, rail
rank » ranks, bank
frank » franks, fbank
band » bank, bond
gran » grant, grain, iran
grayt » grant, gray, graft

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 (((ihand OR (grand OR grays)) OR ((gmain OR brain) OR rain)) OR ihand)) OR had) OR rank) OR stand) OR land) OR band) OR (frank OR (gran OR grayt))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((rand OR sand) or (((ihand or (grand or grays)) or ((gmain or brain) or rain)) or ihand)) or had) or rank) or stand) or land) or band) or (frank or (gran or grayt))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((((((rand OR sand) or (((ihand or (grand or grays)) or ((gmain or brain) or rain)) or ihand)) or had) or rank) or stand) or land) or band) or (frank or (gran or grayt))) counterinsurgency study ;*.