Perhaps you should try some spelling variations:
rand » brand, sand, rank
grandtd » gbrandtd, gsandtd, granktd, granttd, brandtd
grand » gbrand, gsand, grank, grant, brand
band » bond
gsand » sand
rate » rates
draw » draws, raw
brains » brain, grains, trains, bbrains, bmains, bgains
bbrains » bbrain, bgrains, btrains, bargains, bahrains, bbbrains, bbmains, bbgains
tmains » trains, mains
rain » brain, main, gain

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 hand) or band) or hard) or (had or land)) or (bank or bonds)) or (((((gsand or ggaind) or grandtd) or rate) or (grand or draw)) or ((((brains OR bbrains) or tmains) or bmaint) or rain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((rand OR hand) OR band) OR hard) OR (had OR land)) OR (bank OR bonds)) OR (((((gsand OR ggaind) OR grandtd) OR rate) OR (grand OR draw)) OR ((((brains OR bbrains) OR tmains) OR bmaint) OR rain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((rand or hand) or band) or hard) or (had or land)) or (bank or bonds)) or (((((gsand or ggaind) or grandtd) or rate) or (grand or draw)) or ((((brains OR bbrains) or tmains) or bmaint) or rain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((((rand or hand) or band) or hard) or (had or land)) or (bank or bonds)) or (((((gsand or ggaind) or grandtd) or rate) or (grand or draw)) or ((((brains OR bbrains) or tmains) or bmaint) or rain))) counterinsurgency study ;*.