Perhaps you should try some spelling variations:
sand » stand
hand » had, hard
band » bank
bond » bonds
grand » brand, irand, grawd, grayd
irand » brand, iran, rand
grayd » gray, grad
gran » iran, graw, gray
grant » irant, grawt, grayt, grants
grain » rain
rank » ranks, frank, bank
franks » frankss, ffranks, fbanks, ranks, frank, frans
fbank » bank, frank
grayt » gray, graft

You may be able to get more results by adjusting your search query.

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