Perhaps you should try some spelling variations:
rand » brand, grand, sand
band » bank
bond » bonds
grawd » grand, graw, grad
grant » grants, graint, grandt, irant
grawe » grade, grace, graw
gran » grain, grand, iran
trained » tbrained, tmained, tgained
rain » brain, main, gain

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rand OR hand) OR hard) OR (had OR land)) OR (band OR bond)) OR ((((((grawd OR grant) OR (ggaind OR trained)) OR iranttd) OR (grawe OR grow)) OR gran) OR rain)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand OR hand) or hard) or (had or land)) or (band or bond)) or ((((((grawd or grant) or (ggaind or trained)) or iranttd) or (grawe or grow)) or gran) or rain)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand OR hand) or hard) or (had or land)) or (band or bond)) or ((((((grawd or grant) or (ggaind or trained)) or iranttd) or (grawe or grow)) or gran) or rain)) counterinsurgency study ;*.