Perhaps you should try some spelling variations:
rand » brand, sand
grand » gbrand, gsand, brand
rank » ranks, frank, bank
hand » hard
band » bank
bond » bonds
grawd » graw
grad » grade, grid, graw
grawe » grade, grace, graw
grant » grants
grains » grain

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 hand) or (had or land)) or (band or bond)) or ((((grand or gbanktd) or ((grawd OR grad) or grawe)) or grant) or (grains or brain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rand OR rank) OR hand) OR (had OR land)) OR (band OR bond)) OR ((((grand OR gbanktd) OR ((grawd OR grad) OR grawe)) OR grant) OR (grains OR brain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or rank) or hand) or (had or land)) or (band or bond)) or ((((grand or gbanktd) or ((grawd OR grad) or grawe)) or grant) or (grains or brain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rand or rank) or hand) or (had or land)) or (band or bond)) or ((((grand or gbanktd) or ((grawd OR grad) or grawe)) or grant) or (grains or brain))) counterinsurgency study ;*.