Perhaps you should try some spelling variations:
sand » stand, san
hand » had, hard
band » bank
bond » bonds
grand » brand, irand, grayd, trand
irand » brand, iran, rand
trand » strand, trend, brand
graw » grow, raw, draw
gran » iran, gray, tran
grant » irant, grayt, trant, grants
grain » rain
rank » ranks, frank, bank
banks » bank
trant » trans, tran, tract

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 (hand OR land)) OR (band OR bond)) OR ((((((grand OR irand) OR trand) OR graw) OR graw) OR ((gran OR (grain OR brain)) OR (rank OR banks))) OR (grant OR trant))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((sand or (hand or land)) or (band or bond)) or ((((((grand OR irand) or trand) or graw) or graw) or ((gran or (grain or brain)) or (rank or banks))) or (grant or trant))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((sand or (hand or land)) or (band or bond)) or ((((((grand OR irand) or trand) or graw) or graw) or ((gran or (grain or brain)) or (rank or banks))) or (grant or trant))) counterinsurgency study ;*.