Perhaps you should try some spelling variations:
rand » brand, sand, rank
grand » gbrand, gsand, grank, grant, brand, grantd, graind, irand
grandtd » gbrandtd, gsandtd, granktd, granttd, brandtd, grantdtd, graindtd, irandtd
hand » hard
band » bank
grawe » grade, grace, grave, growe, rawe, drawe
gran » grant, grain, iran
graw » grow, raw, draw
bgain » gain, brain, again
rain » brain, main, gain
grail » grain, frail, gmail
trail » trails, train, trait, tmail
rail » mail

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: ((((rand OR (hand OR band)) OR (had OR land)) OR (bond OR bonds)) OR ((((grand OR grandtd) OR grawe) OR (gran OR graw)) OR ((bgain OR rain) OR (grail OR (trail OR rail))))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (hand or band)) or (had or land)) or (bond or bonds)) or ((((grand or grandtd) or grawe) or (gran or graw)) or ((bgain or rain) or (grail or (trail OR rail))))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (hand or band)) or (had or land)) or (bond or bonds)) or ((((grand or grandtd) or grawe) or (gran or graw)) or ((bgain or rain) or (grail or (trail OR rail))))) counterinsurgency study ;*.