Perhaps you should try some spelling variations:
sand » stand, san
rank » ranks, bank
frank » franks, fbank
franks » frankss, fbanks, ranks, frans
hand » had, hard
band » bank, bond
irants » grants, migrants
irans » iran, trans, frans
irani » iran, iraqi, rani
irand » brand, iran, rand
igrant » migrant, sgrant, migrants, igraint, iirant, igrawt, igrants
grand » brand, graind, irand, grawd
gran » grain, iran, graw
grant » graint, irant, grawt, grants

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 franks)) or hand) or land) or band) or (((((irants or irans) or irani) or (irand or igrant)) or (grand or irantd)) or ((gran OR grant) or brain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((sand OR rank) OR (frank OR franks)) OR hand) OR land) OR band) OR (((((irants OR irans) OR irani) OR (irand OR igrant)) OR (grand OR irantd)) OR ((gran OR grant) OR brain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((sand or rank) or (frank or franks)) or hand) or land) or band) or (((((irants or irans) or irani) or (irand or igrant)) or (grand or irantd)) or ((gran OR grant) or brain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((((sand or rank) or (frank or franks)) or hand) or land) or band) or (((((irants or irans) or irani) or (irand or igrant)) or (grand or irantd)) or ((gran OR grant) or brain))) counterinsurgency study ;*.