Perhaps you should try some spelling variations:
band » bank, bond
irand » brand, iran, grand
grailed » grained, derailed, grappled
grayt » gray
graft » draft, craft, kraft
grant » grants, graint, grandt, irant
gran » grain, grand, iran
rain » gain, rail
brain » bgain, brail
mains » gains, rains, mais
again » gain

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 (band or bonds)) or ((((((irand or grailed) or ((grayt OR graft) or grant)) or irantdtd) or trade) or ((gran or irand) or (rain or main))) or (mains or (again or brain)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((san OR hard) OR (had OR land)) OR (band OR bonds)) OR ((((((irand OR grailed) OR ((grayt OR graft) OR grant)) OR irantdtd) OR trade) OR ((gran OR irand) OR (rain OR main))) OR (mains OR (again OR brain)))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((san or hard) or (had or land)) or (band or bonds)) or ((((((irand or grailed) or ((grayt OR graft) or grant)) or irantdtd) or trade) or ((gran or irand) or (rain or main))) or (mains or (again or brain)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((san or hard) or (had or land)) or (band or bonds)) or ((((((irand or grailed) or ((grayt OR graft) or grant)) or irantdtd) or trade) or ((gran or irand) or (rain or main))) or (mains or (again or brain)))) counterinsurgency study ;*.