Perhaps you should try some spelling variations:
rank » ranks, frank
hand » band, hard
irand » brand, iran, grand
grantdtd » granted, granttdtd, grandtdtd, irantdtd
rawe » grawe, rate, raw
gran » grant, grand, iran
graw » grow, raw, draw
braint » brains, brant, bgaint, brailt
rain » gain, rail
brain » bgain, brail
grain » ggain, grail
bgain » gain, again, bain
grail » rail, trail, frail

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 bank) or hand) or (had or land)) or (bond or bonds)) or ((((irand or grantdtd) or rawe) or (gran or graw)) or ((braint or (rain or brain)) or (bgain or ((grain OR grail) or main))))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rank OR bank) OR hand) OR (had OR land)) OR (bond OR bonds)) OR ((((irand OR grantdtd) OR rawe) OR (gran OR graw)) OR ((braint OR (rain OR brain)) OR (bgain OR ((grain OR grail) OR main))))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rank or bank) or hand) or (had or land)) or (bond or bonds)) or ((((irand or grantdtd) or rawe) or (gran or graw)) or ((braint or (rain or brain)) or (bgain or ((grain OR grail) or main))))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rank or bank) or hand) or (had or land)) or (bond or bonds)) or ((((irand or grantdtd) or rawe) or (gran or graw)) or ((braint or (rain or brain)) or (bgain or ((grain OR grail) or main))))) counterinsurgency study ;*.