Perhaps you should try some spelling variations:
grant » grants, grandt, irant, grayt
band » bank
bond » bonds
graw » raw, draw, grew
grawt » rawt, drawt, grewt, graft, grawe
grain » brain, gbrain, gmain, ggain
grave » gravel, grade
grace » grade, grate, gface, grice
race » rate, face, rice
gran » grand, iran, gray
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: ((((grant OR hard) OR (had OR land)) OR (band OR bond)) OR ((((((graw OR grawt) OR (grain OR trained)) OR iranttd) OR ((grave OR (grace OR race)) OR grow)) OR gran) OR rain)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((grant or hard) or (had or land)) or (band or bond)) or ((((((graw or grawt) or (grain or trained)) or iranttd) or ((grave or (grace OR race)) or grow)) or gran) or rain)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((grant or hard) or (had or land)) or (band or bond)) or ((((((graw or grawt) or (grain or trained)) or iranttd) or ((grave or (grace OR race)) or grow)) or gran) or rain)) counterinsurgency study ;*.