Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, brand, graind, irand, grawd
ranks » banks
granks » gbanks, grainks, iranks, grawks, grants
bond » bonds
gran » grain, iran, graw
grant » graint, irant, grawt, grants
graint » geraint, grain, grains

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 (frank or ranks)) or (band or land)) or (bank or bond)) or ((grand or ((gran or grow) or granks)) or (grant OR graint))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR (frank OR ranks)) OR (band OR land)) OR (bank OR bond)) OR ((grand OR ((gran OR grow) OR granks)) OR (grant OR graint))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (frank or ranks)) or (band or land)) or (bank or bond)) or ((grand or ((gran or grow) or granks)) or (grant OR graint))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (frank or ranks)) or (band or land)) or (bank or bond)) or ((grand or ((gran or grow) or granks)) or (grant OR graint))) counterinsurgency study ;*.