Perhaps you should try some spelling variations:
ranks » banks
grand » grant, brand, grantd, graind, irand
hand » band, hard
tgained » gained, trained, strained
attained » obtained, retained, trained
granttd » granted, grantttd, grainttd, iranttd
drawn » draw
gran » grant, grain, iran
graw » grow, raw, draw
brail » brazil, brasil, rail
railt » rail, rails
rain » brain, main, gain

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 grand) or hand) or (had or land)) or (bank or bonds)) or (((((stand or (tgained OR attained)) or granttd) or (draws or drawn)) or (gran or graw)) or ((brail or railt) or rain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((ranks OR grand) OR hand) OR (had OR land)) OR (bank OR bonds)) OR (((((stand OR (tgained OR attained)) OR granttd) OR (draws OR drawn)) OR (gran OR graw)) OR ((brail OR railt) OR rain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((ranks or grand) or hand) or (had or land)) or (bank or bonds)) or (((((stand or (tgained OR attained)) or granttd) or (draws or drawn)) or (gran or graw)) or ((brail or railt) or rain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((ranks or grand) or hand) or (had or land)) or (bank or bonds)) or (((((stand or (tgained OR attained)) or granttd) or (draws or drawn)) or (gran or graw)) or ((brail or railt) or rain))) counterinsurgency study ;*.