Perhaps you should try some spelling variations:
rand » brand, grand, band
irand » ibrand, igrand, iband, brand, iran, grand
granddt » gbranddt, ggranddt, gbanddt, grantddt, grandddt, iranddt
gran » grant, grand, iran
graink » braink, raink
grains » brains, rains
grain » brain, rain
graind » braind, raind, grained, grand
graint » braint, raint, geraint, grant, gradient
irani » iran, iraqi, iravi, irank, iani
rani » ravi, rank, ani
isand » istand, iband, isan
sand » stand, band, san
brant » brandt, grant, brand

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 (hard or had)) or (bank or land)) or ((((graink or grains) or (gran OR grain)) or ((((irani or rani) or (isand or sand)) or irand) or graind)) or ((graint or granddt) or brant))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((rand OR (hard OR had)) OR (bank OR land)) OR ((((graink OR grains) OR (gran OR grain)) OR ((((irani OR rani) OR (isand OR sand)) OR irand) OR graind)) OR ((graint OR granddt) OR brant))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((rand or (hard or had)) or (bank or land)) or ((((graink or grains) or (gran OR grain)) or ((((irani or rani) or (isand or sand)) or irand) or graind)) or ((graint or granddt) or brant))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((rand or (hard or had)) or (bank or land)) or ((((graink or grains) or (gran OR grain)) or ((((irani or rani) or (isand or sand)) or irand) or graind)) or ((graint or granddt) or brant))) counterinsurgency study ;*.