Perhaps you should try some spelling variations:
rand » brand, grand, hand
grandtk » gbrandtk, ggrandtk, ghandtk, granddtk, irandtk, grawdtk
granddk » gbranddk, ggranddk, ghanddk, grandddk, iranddk, grawddk
rank » frank
ranks » franks, banks
grank » gfrank, frank, grand, grandk, irank, grawk
sand » san, hand
band » bond
graints » grants, grains, gradients, gpaints, braints, raints
raints » rains, paints
grantk » grants, grandtk, irantk, grawtk, grantsk
granttd » grandttd, iranttd, grawttd, grantstd
granted » grandted, iranted, grawted, grantsed
gran » grand, iran, graw
grant » grandt, irant, grawt, grants
grain » brain, rain

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 ranks)) or (sand or stand)) or ((band or bank) or land)) or (((granttd or granted) or (graints OR raints)) or (((grank or (grantk or grandtk)) or granddk) or ((gran or grant) or grain)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR (rank OR ranks)) OR (sand OR stand)) OR ((band OR bank) OR land)) OR (((granttd OR granted) OR (graints OR raints)) OR (((grank OR (grantk OR grandtk)) OR granddk) OR ((gran OR grant) 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 stand)) or ((band or bank) or land)) or (((granttd or granted) or (graints OR raints)) or (((grank or (grantk or grandtk)) or granddk) or ((gran or grant) or grain)))) counterinsurgency study ;*".