Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, brand, irand, grawd, grayd
bond » bonds
grawe » grade, grace, graw
gran » iran, graw, gray
grant » irant, grawt, grayt, grants
grain » brain, gbrain, gmain, grail
grains » brains, gbrains, gmains, grails
gain » gains, main
rain » brain, main, rail

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 bank) or bond)) or ((((grand or gsandtd) or grawe) or (((gran OR grain) or grant) or (gain or rain))) or grains)) 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 bank) OR bond)) OR ((((grand OR gsandtd) OR grawe) OR (((gran OR grain) OR grant) OR (gain OR rain))) OR grains)) 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 bank) or bond)) or ((((grand or gsandtd) or grawe) or (((gran OR grain) or grant) or (gain or rain))) or grains)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or ((band or bank) or bond)) or ((((grand or gsandtd) or grawe) or (((gran OR grain) or grant) or (gain or rain))) or grains)) counterinsurgency study ;*.