Perhaps you should try some spelling variations:
rank » ranks, frank
grand » grant, brand, grantd, graind, irand
hand » band
sand » stand, band, san
trailed » trained, tailed, trailer
granttd » granted, grantttd, grainttd, iranttd
drawe » draws, draw, drawn
gran » grant, grain, iran
graw » grow, raw, draw
bmain » main, bain, smain
railt » rail, rails
brain » bmain, bgain, brail
rain » main, 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: (((((rank or grand) or (hand OR hard)) or (had or land)) or (bank or bonds)) or (((((sand or trailed) or granttd) or drawe) or (gran or graw)) or ((((brain or bmain) or bmain) 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 hard)) OR (had OR land)) OR (bank OR bonds)) OR (((((sand OR trailed) OR granttd) OR drawe) OR (gran OR graw)) OR ((((brain OR bmain) OR bmain) 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 hard)) or (had or land)) or (bank or bonds)) or (((((sand or trailed) or granttd) or drawe) or (gran or graw)) or ((((brain or bmain) or bmain) or railt) or rain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rank or grand) or (hand OR hard)) or (had or land)) or (bank or bonds)) or (((((sand or trailed) or granttd) or drawe) or (gran or graw)) or ((((brain or bmain) or bmain) or railt) or rain))) counterinsurgency study ;*.