Perhaps you should try some spelling variations:
rand » brand, grand, hand
grandtd » gbrandtd, ggrandtd, ghandtd, grantdtd, granddtd, irandtd
band » bank, bond
grayd » grand, gray, grad
grawe » grade, grace, grave, growe, rawe, drawe
gran » grant, grand, iran
graw » grow, raw, draw
braint » brain, brains, brant, bsaint, brainy, bbraint, bmaint, bgaint
raint » saint, rainy, rains, braint, maint, gaint
grain » brain, gbrain, gmain, ggain
ggain » gain, again
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 frank) or hard) or (had or land)) or (band or bonds)) or ((((grayd or grandtd) or grawe) or (gran or graw)) or ((braint or raint) or ((grain OR ggain) or rain)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rand OR frank) OR hard) OR (had OR land)) OR (band OR bonds)) OR ((((grayd OR grandtd) OR grawe) OR (gran OR graw)) OR ((braint OR raint) OR ((grain OR ggain) OR rain)))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or frank) or hard) or (had or land)) or (band or bonds)) or ((((grayd or grandtd) or grawe) or (gran or graw)) or ((braint or raint) or ((grain OR ggain) or rain)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rand or frank) or hard) or (had or land)) or (band or bonds)) or ((((grayd or grandtd) or grawe) or (gran or graw)) or ((braint or raint) or ((grain OR ggain) or rain)))) counterinsurgency study ;*.