Perhaps you should try some spelling variations:
rand » brand, band, hand
grand » gbrand, gband, ghand, grant, brand, grantd, graind, irand
irand » ibrand, iband, ihand, brand, iran, irani
rank » frank
ranks » franks, banks
franks » ffranks, fbanks, frank, frans
gband » band
graint » geraint, grant, grain
graints » geraints, grants, grains, gradients
gran » grant, grain, iran

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 (had OR land)) OR (bank OR (bond OR bonds))) OR ((((grand OR gband) OR (irand OR graint)) OR (gran OR (grawks OR (ranks OR franks)))) OR graints)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or rank) or (had or land)) or (bank or (bond or bonds))) or ((((grand or gband) or (irand or graint)) or (gran or (grawks or (ranks OR franks)))) or graints)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or rank) or (had or land)) or (bank or (bond or bonds))) or ((((grand or gband) or (irand or graint)) or (gran or (grawks or (ranks OR franks)))) or graints)) counterinsurgency study ;*.