Perhaps you should try some spelling variations:
rand » brand, sand
grand » gbrand, gsand, grantd, graind, irand, grant, brand
rank » frank
ranks » franks, banks
hand » hard
gran » grant, grain, iran
bond » bonds
grayt » grant, gray, graft
grad » grade, grid, gray
graw » grow, raw, draw
graints » grants, grains, gradients
irani » iran, iraqi, iravi, iani, irai
rani » ravi, ani, rai

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 ranks)) or (hand or had)) or (bank or land)) or (((gbandk or (gran or brain)) or ((band or bond) or ((grand or grayt) or (grad or graw)))) or (graints or (irani OR rani)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR (rank OR ranks)) OR (hand OR had)) OR (bank OR land)) OR (((gbandk OR (gran OR brain)) OR ((band OR bond) OR ((grand OR grayt) OR (grad OR graw)))) OR (graints OR (irani OR rani)))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (rank or ranks)) or (hand or had)) or (bank or land)) or (((gbandk or (gran or brain)) or ((band or bond) or ((grand or grayt) or (grad or graw)))) or (graints or (irani OR rani)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (rank or ranks)) or (hand or had)) or (bank or land)) or (((gbandk or (gran or brain)) or ((band or bond) or ((grand or grayt) or (grad or graw)))) or (graints or (irani OR rani)))) counterinsurgency study ;*.