Perhaps you should try some spelling variations:
rand » brand, grand, band
grass » gross, glass
rayd » ray, rays, raya
grant » grants
growe » grower, garowe, grown
brain » bmain, bgain, brail
grain » gmain, ggain, grail
rain » main, gain, rail
rains » mains, gains, rails, grains, trains, drains
gray » ray, graw

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((rand or hard) or (had or land)) or (bond or bonds)) or (((((((grass or rayd) or grant) or brain) or rayttd) or (growe or grow)) or ((grain OR rain) or gray)) or rains)) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR hard) OR (had OR land)) OR (bond OR bonds)) OR (((((((grass OR rayd) OR grant) OR brain) OR rayttd) OR (growe OR grow)) OR ((grain OR rain) OR gray)) OR rains)) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or hard) or (had or land)) or (bond or bonds)) or (((((((grass or rayd) or grant) or brain) or rayttd) or (growe or grow)) or ((grain OR rain) or gray)) or rains)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or (bond or bonds)) or (((((((grass or rayd) or grant) or brain) or rayttd) or (growe or grow)) or ((grain OR rain) or gray)) or rains)) counterinsurgency study ;*.