Perhaps you should try some spelling variations:
rand » brand, band, hand
grand » gbrand, gband, ghand, brand, irand, grawd, grayd
irand » ibrand, iband, ihand, brand, iran, irani
sand » band, san, hand
grayd » gray, grad
gran » iran, graw, gray
grant » irant, grawt, grayt, grants
strained » trained, strain, attained, stbrained, stmained, stgained
grain » brain, gbrain, gmain, ggain
ggaind » gaind, againd
ggain » gain, again
rain » brain, main, gain
graft » draft, craft, kraft

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 (sand OR stand)) or (hard or had)) or (bank or land)) or ((((grand or grayd) or gran) or (irand or ((ggaind or strained) or ((grain or ggain) or rain)))) or (grant or graft))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR (sand OR stand)) OR (hard OR had)) OR (bank OR land)) OR ((((grand OR grayd) OR gran) OR (irand OR ((ggaind OR strained) OR ((grain OR ggain) OR rain)))) OR (grant OR graft))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (sand OR stand)) or (hard or had)) or (bank or land)) or ((((grand or grayd) or gran) or (irand or ((ggaind or strained) or ((grain or ggain) or rain)))) or (grant or graft))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (sand OR stand)) or (hard or had)) or (bank or land)) or ((((grand or grayd) or gran) or (irand or ((ggaind or strained) or ((grain or ggain) or rain)))) or (grant or graft))) counterinsurgency study ;*.