Perhaps you should try some spelling variations:
rand » brand, grand, hand
grandk » gbrandk, ggrandk, ghandk, grand, grande, grantdk, granddk, irandk
rank » frank
ranks » franks, banks
gfrank » gffrank, frank
sand » stand, san, hand
band » bond
graintd » grained, braintd, raintd
grants » migrants, grantts, grandts, irants
graints » grains, gradients, braints, raints
gran » grant, grand, iran
graind » grained, grains, grand, braind, raind
grain » brain, rain

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 (rank OR ranks)) OR sand) OR ((band OR bank) OR land)) OR ((graintd OR (grants OR graints)) OR ((gfrank OR grandk) OR (gran OR (graind OR grain))))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (rank or ranks)) or sand) or ((band or bank) or land)) or ((graintd or (grants or graints)) or ((gfrank or grandk) or (gran or (graind OR grain))))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (rank or ranks)) or sand) or ((band or bank) or land)) or ((graintd or (grants or graints)) or ((gfrank or grandk) or (gran or (graind OR grain))))) counterinsurgency study ;*.