Perhaps you should try some spelling variations:
rand » brand, grand, sand
rank » ranks, frank, bank
hand » hard
band » bank
bond » bonds
graind » grained, grand, gmaind, ggaind, graild
grad » grade, grand, grid
grain » gmain, ggain, grail
rain » main, gain, rail
grains » gmains, ggains, grails
brain » bmain, bgain, brail
grant » grants

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

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