Perhaps you should try some spelling variations:
rand » brand, grand, hand
rank » ranks, frank, bank
iranktd » irankstd, ifranktd, ibanktd
band » bank
graind » grained, grain, grains
ghani » ghana
grad » grade, grand, grid
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 hard) OR (had OR land)) OR ((band OR bond) OR bonds)) OR ((((((graind OR ghani) OR graind) OR iranktd) OR grad) OR gran) OR graint)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or rank) or hard) or (had or land)) or ((band OR bond) or bonds)) or ((((((graind or ghani) or graind) or iranktd) or grad) or gran) or graint)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand or rank) or hard) or (had or land)) or ((band OR bond) or bonds)) or ((((((graind or ghani) or graind) or iranktd) or grad) or gran) or graint)) counterinsurgency study ;*.