Perhaps you should try some spelling variations:
rand » brand, band, hand
grand » gbrand, gband, ghand, irand, grawd, grayd, brand
rank » ranks, frank
gsand » gstand, gband, gsan
sand » stand, band, san
gran » iran, graw, gray
grant » irant, grawt, grayt, grants
irant » iran, irani, brant
graint » geraint, grains, gradient, grain, gsaint, grainy, braint, raint
raint » rain, saint, rainy
grain » brain, rain

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 (had or land)) or (bank or bonds)) or (((gsand or sand) or (((gran OR grand) or banks) or banks)) or ((grant or irant) or ((graint or raint) or grain)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR rank) OR (had OR land)) OR (bank OR bonds)) OR (((gsand OR sand) OR (((gran OR grand) OR banks) OR banks)) OR ((grant OR irant) OR ((graint OR raint) OR grain)))) counterinsurgency study ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or rank) or (had or land)) or (bank or bonds)) or (((gsand or sand) or (((gran OR grand) or banks) or banks)) or ((grant or irant) or ((graint or raint) or grain)))) counterinsurgency study ;*".