Perhaps you should try some spelling variations:
rank » ranks
frank » franks
franks » frankss, ranks
frans » franz, trans, fran
bond » bonds
grand » brand, graind, irand, grawd
grains » grain
gran » grain, iran, graw
grant » graint, irant, grawt
grants » graints, irants, grawts, migrants
grawt » graw, graft, grawe

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((had or ((rank or (frank or (franks OR frans))) or banks)) or (san or stand)) or ((bond or bank) or land)) or (grand or (grains or (gran or ((grant or grants) or (grawt or raw)))))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((had OR ((rank OR (frank OR (franks OR frans))) OR banks)) OR (san OR stand)) OR ((bond OR bank) OR land)) OR (grand OR (grains OR (gran OR ((grant OR grants) OR (grawt OR raw)))))) counterinsurgency study ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((had or ((rank or (frank or (franks OR frans))) or banks)) or (san or stand)) or ((bond or bank) or land)) or (grand or (grains or (gran or ((grant or grants) or (grawt or raw)))))) counterinsurgency study ;*".