Perhaps you should try some spelling variations:
rand » brand, grand, hand
grandtd » gbrandtd, ggrandtd, ghandtd, grantdtd, granddtd, irandtd
rank » ranks, frank, bank
band » bank, bond
grad » grade, grand, gray
grawe » grade, grace, grave, growe, rawe, drawe
gran » grant, grand, iran
graw » grow, raw, draw
braint » brain, brains, brant, bsaint
raint » rain, saint, rains
rainy » rain
grain » brain, rain

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 hard) or (had or land)) or (band or bonds)) or (((((grad or grid) or (grandtd OR ghandtd)) or grawe) or (gran or graw)) or ((braint or (raint or rainy)) or grain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rand OR rank) OR hard) OR (had OR land)) OR (band OR bonds)) OR (((((grad OR grid) OR (grandtd OR ghandtd)) OR grawe) OR (gran OR graw)) OR ((braint OR (raint OR rainy)) OR grain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or rank) or hard) or (had or land)) or (band or bonds)) or (((((grad or grid) or (grandtd OR ghandtd)) or grawe) or (gran or graw)) or ((braint or (raint or rainy)) or grain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rand or rank) or hard) or (had or land)) or (band or bonds)) or (((((grad or grid) or (grandtd OR ghandtd)) or grawe) or (gran or graw)) or ((braint or (raint or rainy)) or grain))) counterinsurgency study ;*.