Perhaps you should try some spelling variations:
rank » ranks, frank, bank
band » bank
hand » hard
graind » grained, grain, grains, gmaind, graild
grace » race
grade » trade
granttd » grantttd, grainttd, grandttd
granted » grantted, grainted, grandted
gran » grant, grain, grand
graw » grow, raw, draw
brain » bmain, brail
rain » main, rail
gain » gains, main

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((rank or band) or hand) or (had or land)) or (bond or bonds)) or ((((graind or (granttd or granted)) or (grace OR grade)) or (gran or graw)) or ((brain or (rain or gain)) or gbmain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rank OR band) OR hand) OR (had OR land)) OR (bond OR bonds)) OR ((((graind OR (granttd OR granted)) OR (grace OR grade)) OR (gran OR graw)) OR ((brain OR (rain OR gain)) OR gbmain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rank or band) or hand) or (had or land)) or (bond or bonds)) or ((((graind or (granttd or granted)) or (grace OR grade)) or (gran or graw)) or ((brain or (rain or gain)) or gbmain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rank or band) or hand) or (had or land)) or (bond or bonds)) or ((((graind or (granttd or granted)) or (grace OR grade)) or (gran or graw)) or ((brain or (rain or gain)) or gbmain))) counterinsurgency study ;*.