Perhaps you should try some spelling variations:
sand » stand, san
hand » had, hard
grand » grant, brand, grantd, irand, trand
trand » strand, trend, brand
gray » ray
graw » grow, raw, draw
gran » grant, iran, tran
grain » rain
rank » ranks, frank
irant » grant, iran, irani

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 bonds))) OR (((((grand OR trand) OR (gray OR graw)) OR (gray OR graw)) OR ((gran OR (grain OR brain)) OR ((rank OR bank) OR banks))) OR irant)) 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 bonds))) or (((((grand or trand) or (gray or graw)) or (gray or graw)) or ((gran or (grain or brain)) or ((rank or bank) or banks))) or irant)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((sand or (hand or land)) or (band or (bond OR bonds))) or (((((grand or trand) or (gray or graw)) or (gray or graw)) or ((gran or (grain or brain)) or ((rank or bank) or banks))) or irant)) counterinsurgency study ;*.