Perhaps you should try some spelling variations:
rank » ranks, frank
grand » grant, brand, grantd, graind, irand
grandtd » granttd, brandtd, grantdtd, graindtd, irandtd
grantd » granted, grants, grant, granttd, graintd, irantd
hand » band, hard
sand » stand, band, san
tmained » remained, attained, imagined
drawe » draws, drawn, drake, drawse, rawe
gran » grant, grain, iran
draw » draws, raw
braint » brain, brains, brant, bsaint, brainy, bbraint, bmaint, bgaint
raint » saint, rainy, rains, braint, maint, gaint
trained » tbrained, tmained, tgained
rain » brain, main, gain

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((rank or (grand OR grantd)) or hand) or (had or land)) or (bank or bonds)) or (((((sand or (trained or tmained)) or grandtd) or drawe) or (gran or draw)) or ((braint or raint) or rain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rank OR (grand OR grantd)) OR hand) OR (had OR land)) OR (bank OR bonds)) OR (((((sand OR (trained OR tmained)) OR grandtd) OR drawe) OR (gran OR draw)) OR ((braint OR raint) OR rain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rank or (grand OR grantd)) or hand) or (had or land)) or (bank or bonds)) or (((((sand or (trained or tmained)) or grandtd) or drawe) or (gran or draw)) or ((braint or raint) or rain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rank or (grand OR grantd)) or hand) or (had or land)) or (bank or bonds)) or (((((sand or (trained or tmained)) or grandtd) or drawe) or (gran or draw)) or ((braint or raint) or rain))) counterinsurgency study ;*.