Perhaps you should try some spelling variations:
sand » stand, band, san
rank » ranks
frank » franks, irank, fank, trank
fats » facts
fran » iran, fan, tran
franz » iranz, fanz, tranz
irani » iran, rani
iraqi » irani
iraq » iran
grand » grant, brand, grantd, graind, irand
igrantd » migrants, igranttd, igraintd, iirantd
graind » grained, grain, grains, gbraind, gmaind, ggaind
granted » grantted, grainted, iranted
gran » grant, grain, iran
rain » brain, main, gain

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 franz)))) or had) or land) or bank) or ((((granted or (irani or (iraqi or iraq))) or (grand or igrantd)) or graind) or (gran or rain))) 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 franz)))) OR had) OR land) OR bank) OR ((((granted OR (irani OR (iraqi OR iraq))) OR (grand OR igrantd)) OR graind) OR (gran OR rain))) 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 franz)))) or had) or land) or bank) or ((((granted or (irani or (iraqi or iraq))) or (grand or igrantd)) or graind) or (gran or rain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((((sand or rank) or (frank or (fats or (fran OR franz)))) or had) or land) or bank) or ((((granted or (irani or (iraqi or iraq))) or (grand or igrantd)) or graind) or (gran or rain))) counterinsurgency study ;*.