Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, grant, brand
grandtd » gbrandtd, ghandtd, gsandtd, granttd, brandtd
band » bank, bond
ggained » gained, grained, regained
gravel » travel
draw » draws, raw
grains » grain, gmains, ggains, grails
gmains » gains, gmain, ggains, grains
mains » main, gains, rains
brain » bmain, bgain, brail
rain » main, gain, rail

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 grand) or hard) or (had or land)) or (band or bonds)) or (((((stand or ggained) or grandtd) or gravel) or (stand or draw)) or ((brain or (grains or (gmains or mains))) or rain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rand OR grand) OR hard) OR (had OR land)) OR (band OR bonds)) OR (((((stand OR ggained) OR grandtd) OR gravel) OR (stand OR draw)) OR ((brain OR (grains OR (gmains OR mains))) OR rain))) counterinsurgency study ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand OR grand) or hard) or (had or land)) or (band or bonds)) or (((((stand or ggained) or grandtd) or gravel) or (stand or draw)) or ((brain or (grains or (gmains or mains))) or rain))) counterinsurgency study ;*".