Perhaps you should try some spelling variations:
rand » brand, grand, hand
rank » frank, bank
ranks » franks, banks
iranktd » ifranktd, ibanktd
band » bank
bond » bonds
graind » grained, grain, grains
grawd » grand, graw, grad
gran » grant, grain, grand
graint » geraint, grant, grain

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 hard) OR (had OR land)) OR (band OR bond)) OR (((((graind OR graind) OR iranktd) OR grawd) OR gran) OR graint)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or (rank OR ranks)) or hard) or (had or land)) or (band or bond)) or (((((graind or graind) or iranktd) or grawd) or gran) or graint)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand or (rank OR ranks)) or hard) or (had or land)) or (band or bond)) or (((((graind or graind) or iranktd) or grawd) or gran) or graint)) counterinsurgency study ;*.