Perhaps you should try some spelling variations:
ranks » banks
bond » bonds
grant » grants
grantdtd » grantsdtd, granted
grawt » graft, grawe, rawt, drawt, grewt
grain » brain, gbrain, ggain, grail
race » rate, face, rice
graw » raw, draw, grew
rain » brain, gain, rail

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 ((((((grant or grawt) or grain) or grantdtd) or race) or (graw OR grow)) or (bgaint or (rain or main)))) 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 ((((((grant OR grawt) OR grain) OR grantdtd) OR race) OR (graw OR grow)) OR (bgaint OR (rain OR main)))) 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 ((((((grant or grawt) or grain) or grantdtd) or race) or (graw OR grow)) or (bgaint or (rain or main)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((hard or ranks) or band) or (had or land)) or (bank or bond)) or ((((((grant or grawt) or grain) or grantdtd) or race) or (graw OR grow)) or (bgaint or (rain or main)))) counterinsurgency study ;*.