Perhaps you should try some spelling variations:
sand » stand, band, san
rank » ranks
frank » franks, franzk, irank, fank
fats » facts
fran » franz, iran, fan
irani » iran, rani
iraqi » iraq
grand » grant, brand, grantd, graind, irand
igrantd » migrants, igranttd, igraintd, iirantd
graind » grained, grain, grains, gbraind, ggaind, graild
granted » grantted, grainted, iranted
gran » grant, grain, iran
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: ((((((sand or rank) or (frank or (fats or fran))) or had) or land) or bank) or ((((granted or (irani or iraqi)) or (grand or igrantd)) or graind) or (gran or (rain OR main)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((sand OR rank) OR (frank OR (fats OR fran))) OR had) OR land) OR bank) OR ((((granted OR (irani OR iraqi)) OR (grand OR igrantd)) OR graind) OR (gran OR (rain OR main)))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((sand or rank) or (frank or (fats or fran))) or had) or land) or bank) or ((((granted or (irani or iraqi)) or (grand or igrantd)) or graind) or (gran or (rain OR main)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((((sand or rank) or (frank or (fats or fran))) or had) or land) or bank) or ((((granted or (irani or iraqi)) or (grand or igrantd)) or graind) or (gran or (rain OR main)))) counterinsurgency study ;*.