Perhaps you should try some spelling variations:
rand » brand, grand, hand
irand » ibrand, igrand, ihand, brand, iran, grand
granttd » granted
graind » grained, grains, grand, braind, gbraind, ggaind, graild
braind » brand, brain, brains, bbraind, bgaind, braild
rank » ranks, bank
frank » franks, fbank
flanks » planks
sand » stand, san, hand
band » bank, bond
irans » iran, trans, frans
grain » brain, gbrain, ggain, grail
rain » brain, 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 ((granttd or ((graind or braind) or ggaind)) or irand)) or had) or ((rank or frank) or flanks)) or sand) or land) or band) or (irans or (grain or (rain OR main)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((rand OR ((granttd OR ((graind OR braind) OR ggaind)) OR irand)) OR had) OR ((rank OR frank) OR flanks)) OR sand) OR land) OR band) OR (irans OR (grain OR (rain OR main)))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((((rand or ((granttd or ((graind or braind) or ggaind)) or irand)) or had) or ((rank or frank) or flanks)) or sand) or land) or band) or (irans or (grain or (rain OR main)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((((rand or ((granttd or ((graind or braind) or ggaind)) or irand)) or had) or ((rank or frank) or flanks)) or sand) or land) or band) or (irans or (grain or (rain OR main)))) counterinsurgency study ;*.