Perhaps you should try some spelling variations:
grand » brand, irand, grawd, grayd
ranks » banks
hand » hard
band » bank, bond
grant » grants, irant, grawt, grayt
grantdtd » grantsdtd, granted, irantdtd, grawtdtd, graytdtd
rain » brain, main, gain
graint » gbraint, gmaint, ggaint, geraint, grains, gradient, braint
grain » gbrain, gmain, ggain, brain
grade » trade
gran » iran, graw, gray
ggain » gain, again

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((grand or ranks) or hand) or (had or land)) or (band or bonds)) or (((((grant or rain) or grantdtd) or grade) or gran) or (graint or (grain OR ggain)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((grand OR ranks) OR hand) OR (had OR land)) OR (band OR bonds)) OR (((((grant OR rain) OR grantdtd) OR grade) OR gran) OR (graint OR (grain OR ggain)))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((grand or ranks) or hand) or (had or land)) or (band or bonds)) or (((((grant or rain) or grantdtd) or grade) or gran) or (graint or (grain OR ggain)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((grand or ranks) or hand) or (had or land)) or (band or bonds)) or (((((grant or rain) or grantdtd) or grade) or gran) or (graint or (grain OR ggain)))) counterinsurgency study ;*.