Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, brand, irand, trand, gramd
band » bank, bond
grayd » grad, rayd
grants » migrants, irants, trants, gramts
grain » brain, rain
graw » raw, draw, grew
grant » irant, trant, gramt
gran » iran, tran, gram
gray » ray
rains » grains, trains, drains

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((rand or hard) or (had or land)) or (band or bonds)) or (((((((grayd or grand) or (grant OR grants)) or grain) or rayttd) or (grow or graw)) or (gran or gray)) or rains)) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR hard) OR (had OR land)) OR (band OR bonds)) OR (((((((grayd OR grand) OR (grant OR grants)) OR grain) OR rayttd) OR (grow OR graw)) OR (gran OR gray)) OR rains)) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or hard) or (had or land)) or (band or bonds)) or (((((((grayd or grand) or (grant OR grants)) or grain) or rayttd) or (grow or graw)) or (gran or gray)) or rains)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or (band or bonds)) or (((((((grayd or grand) or (grant OR grants)) or grain) or rayttd) or (grow or graw)) or (gran or gray)) or rains)) counterinsurgency study ;*.