Perhaps you should try some spelling variations:
rank » ranks, frank, bank
grank » granks, gfrank, gbank, frank, graink, irank, grawk
sand » stand, san
hand » hard
band » bank
bond » bonds
grand » brand, graind, irand, grawd
irani » iran, iraqi, rani
grant » grants, graint, irant, grawt
granttd » grantstd, granted, grainttd, iranttd, grawttd
grawt » graw, graft, grawe
graind » grained, grain, grains, gbraind, gmaind, ggaind
grave » gravel, grace
grade » trade
gran » grain, iran, graw
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 sand) or hand) or (had or land)) or (band or bond)) or ((((((((grand or grank) or irani) or (grant OR grawt)) or (graind or gmaind)) or granttd) or ((grave or grade) or raw)) or gran) or rain)) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rank OR sand) OR hand) OR (had OR land)) OR (band OR bond)) OR ((((((((grand OR grank) OR irani) OR (grant OR grawt)) OR (graind OR gmaind)) OR granttd) OR ((grave OR grade) OR raw)) OR gran) OR rain)) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rank or sand) or hand) or (had or land)) or (band or bond)) or ((((((((grand or grank) or irani) or (grant OR grawt)) or (graind or gmaind)) or granttd) or ((grave or grade) or raw)) or gran) or rain)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rank or sand) or hand) or (had or land)) or (band or bond)) or ((((((((grand or grank) or irani) or (grant OR grawt)) or (graind or gmaind)) or granttd) or ((grave or grade) or raw)) or gran) or rain)) counterinsurgency study ;*.