Perhaps you should try some spelling variations:
rank » ranks, frank
grand » grant, brand, grantd, graind, irand
hand » band, hard
tgained » gained, trained, attained
granttd » granted, grantttd, grainttd, iranttd
grantttd » granted, granttttd, graintttd, irantttd
drawn » draw
gran » grant, grain, iran
graw » grow, raw, draw
brail » brazil, brasil, brain, bmail
rail » mail
railt » mailt, 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: (((((rank or grand) or hand) or (had or land)) or (bank or bonds)) or (((((stand or tgained) or (granttd or grantttd)) or (draws or drawn)) or (gran or graw)) or (((brail OR rail) or railt) or rain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rank OR grand) OR hand) OR (had OR land)) OR (bank OR bonds)) OR (((((stand OR tgained) OR (granttd OR grantttd)) OR (draws OR drawn)) OR (gran OR graw)) OR (((brail OR rail) OR railt) OR rain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rank or grand) or hand) or (had or land)) or (bank or bonds)) or (((((stand or tgained) or (granttd or grantttd)) or (draws or drawn)) or (gran or graw)) or (((brail OR rail) or railt) or rain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rank or grand) or hand) or (had or land)) or (bank or bonds)) or (((((stand or tgained) or (granttd or grantttd)) or (draws or drawn)) or (gran or graw)) or (((brail OR rail) or railt) or rain))) counterinsurgency study ;*.