Perhaps you should try some spelling variations:
ranks » banks
band » bank
hand » hard
graind » grained, grains, grand, gmaind, graild
grace » grade, race
granttd » grantttd, grandttd, iranttd
granted » grantted, grandted, iranted
gran » grant, grand, iran
graw » grow, raw, grew
draw » draws, raw
grain » gmain, grail
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: (((((ranks or band) or hand) or (had or land)) or (bond or bonds)) or ((((graind or (granttd OR granted)) or grace) or ((gran or grain) or (graw or draw))) or ((brain or (rain or gain)) or gbmain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((ranks OR band) OR hand) OR (had OR land)) OR (bond OR bonds)) OR ((((graind OR (granttd OR granted)) OR grace) OR ((gran OR grain) OR (graw OR draw))) OR ((brain OR (rain OR gain)) OR gbmain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((ranks or band) or hand) or (had or land)) or (bond or bonds)) or ((((graind or (granttd OR granted)) or grace) or ((gran or grain) or (graw or draw))) or ((brain or (rain or gain)) or gbmain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((ranks or band) or hand) or (had or land)) or (bond or bonds)) or ((((graind or (granttd OR granted)) or grace) or ((gran or grain) or (graw or draw))) or ((brain or (rain or gain)) or gbmain))) counterinsurgency study ;*.