Perhaps you should try some spelling variations:
strained » trained, strain, attained
irand » brand, iran, irani, ibrand, iband, ihand
grand » grant, brand, grantd, graind, irand, gbrand, gband, ghand
grande » grante, brande, grantde, grainde, irande, gbrande, gbande, ghande, grade
graind » grained, grain, grains
graindt » grainedt, graint, grainst
grawe » grade, grace, graw
gran » grant, grain, iran
grawt » grant, graw, graft
rand » brand, band, hand

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((san or hard) or (had or land)) or (bank or bonds)) or (((((strained or ((irand OR grand) or graind)) or irantd) or grawe) or gran) or (grawt or (graindt or (rand or grande))))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((san OR hard) OR (had OR land)) OR (bank OR bonds)) OR (((((strained OR ((irand OR grand) OR graind)) OR irantd) OR grawe) OR gran) OR (grawt OR (graindt OR (rand OR grande))))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((san or hard) or (had or land)) or (bank or bonds)) or (((((strained or ((irand OR grand) or graind)) or irantd) or grawe) or gran) or (grawt or (graindt or (rand or grande))))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((san or hard) or (had or land)) or (bank or bonds)) or (((((strained or ((irand OR grand) or graind)) or irantd) or grawe) or gran) or (grawt or (graindt or (rand or grande))))) counterinsurgency study ;*.