Perhaps you should try some spelling variations:
rand » brand
grand » gbrand, irand, grawd, grayd, brand
rank » ranks, frank
gfranks » gfrankss, gffranks
sand » stand, san
hand » hard
bond » bonds
graind » grained, grains, braind, gbraind, gmaind, ggaind
grain » brain, gbrain, gmain, ggain
gbrain » brain, gbbrain, gbmain, gbgain
rain » brain, main, gain
gran » iran, graw, gray
grant » irant, grawt, grayt, grants

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((rand or rank) or (sand or (hand or band))) or ((bond or bank) or land)) or (((graind or ((grain OR gbrain) or rain)) or (gfranks or (gran or (grand or grant)))) or ((had or cham) or ghana))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR rank) OR (sand OR (hand OR band))) OR ((bond OR bank) OR land)) OR (((graind OR ((grain OR gbrain) OR rain)) OR (gfranks OR (gran OR (grand OR grant)))) OR ((had OR cham) OR ghana))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or rank) or (sand or (hand or band))) or ((bond or bank) or land)) or (((graind or ((grain OR gbrain) or rain)) or (gfranks or (gran or (grand or grant)))) or ((had or cham) or ghana))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or rank) or (sand or (hand or band))) or ((bond or bank) or land)) or (((graind or ((grain OR gbrain) or rain)) or (gfranks or (gran or (grand or grant)))) or ((had or cham) or ghana))) counterinsurgency study ;*.