Perhaps you should try some spelling variations:
sand » stand, san
rank » frank, bank
ranks » franks, banks
fbank » bank, frank
franz » frank
hand » had, hard
band » bank, bond
grantd » granted, grants, grant, granttd, graintd, grandtd
irani » iran, iraqi, rani
irand » brand, iran, grand
igrand » grand, igrantd, igraind, igrandd
graind » grained, grain, grand, gmaind, ggaind, graild
grains » grain, gmains, ggains, grails
gran » grant, grain, grand
rain » main, gain, rail
brain » bmain, bgain, brail
brail » brazil, brasil, 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 ranks)) or (fbank or franz)) or hand) or land) or band) or ((((grantd or irani) or (irand or igrand)) or (graind or grains)) or (gran or (rain or (brain OR brail))))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((sand OR (rank OR ranks)) OR (fbank OR franz)) OR hand) OR land) OR band) OR ((((grantd OR irani) OR (irand OR igrand)) OR (graind OR grains)) OR (gran OR (rain OR (brain OR brail))))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((sand or (rank or ranks)) or (fbank or franz)) or hand) or land) or band) or ((((grantd or irani) or (irand or igrand)) or (graind or grains)) or (gran or (rain or (brain OR brail))))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((((sand or (rank or ranks)) or (fbank or franz)) or hand) or land) or band) or ((((grantd or irani) or (irand or igrand)) or (graind or grains)) or (gran or (rain or (brain OR brail))))) counterinsurgency study ;*.