Perhaps you should try some spelling variations:
rand » brand, sand, rank
grand » gbrand, gsand, grank, grant, brand, grantd, irand, grayd
grandtd » gbrandtd, gsandtd, granktd, granttd, brandtd, grantdtd, irandtd, graydtd
band » bank, bond
grayd » gray, grad
grawe » grade, grace, growe, rawe, drawe
drawe » draws, draw, drawn
grave » gravel, grade, grace
gran » grant, iran, gray
graw » grow, raw, draw
braint » brains, brant, bmaint, bgaint, brailt
brain » bmain, bgain, brail
rainy » mainy, gainy, raily
grain » gmain, ggain, grail
rain » main, gain, rail

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 frank) or hard) or (had or land)) or (band or bonds)) or (((((grayd OR grand) or grandtd) or ((grawe or drawe) or grave)) or (gran or graw)) or (((braint or brain) or rainy) or (grain or rain)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((rand OR hand) OR frank) OR hard) OR (had OR land)) OR (band OR bonds)) OR (((((grayd OR grand) OR grandtd) OR ((grawe OR drawe) OR grave)) OR (gran OR graw)) OR (((braint OR brain) OR rainy) OR (grain OR rain)))) counterinsurgency study ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((rand or hand) or frank) or hard) or (had or land)) or (band or bonds)) or (((((grayd OR grand) or grandtd) or ((grawe or drawe) or grave)) or (gran or graw)) or (((braint or brain) or rainy) or (grain or rain)))) counterinsurgency study ;*".