Perhaps you should try some spelling variations:
ranks » banks
grant » grants, grandt, irant, grawt
grantdtd » grantsdtd, granted, grandtdtd, irantdtd, grawtdtd
grawt » graw, graft, grawe
grain » brain, gbrain, gmain, ggain
rain » brain, main, gain
raint » braint, maint, gaint, saint, rains, paint
rainy » brainy, mainy, gainy
race » rate, face, rice
gran » grand, iran, graw

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

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