Perhaps you should try some spelling variations:
rand » brand, grand, hand
rank » frank, bank
ranks » franks, banks
franks » ffranks, fbanks, frank, frans
band » bank, bond
gband » gbank, gbond, grand
graind » grained, grain, grains
grants » grantts, graints, grandts
migrants » migrantts, migraints, migrandts
gran » grant, grain, grand
gbank » bank

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rand OR stand) OR (rank OR (ranks OR franks))) OR (had OR band)) OR land) OR (((graind OR (grants OR migrants)) OR gran) OR (gband OR gbank))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or stand) or (rank or (ranks OR franks))) or (had or band)) or land) or (((graind or (grants or migrants)) or gran) or (gband or gbank))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand or stand) or (rank or (ranks OR franks))) or (had or band)) or land) or (((graind or (grants or migrants)) or gran) or (gband or gbank))) counterinsurgency study ;*.