Perhaps you should try some spelling variations:
sand » stand, hand
band » bank
race » rate, rice, pace
grandt » grant, grand, grande, grantdt, granddt, grawdt
gain » gains, main
grawd » grand, graw, grad
irans » trans, frans, irani
migrants » migrantts, migrandts, migrawts
gran » grant, grand, graw
migraindts » miraindts
grain » rain

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((((((sand OR band) or (race or face)) or ((((migrants or migraindts) or grandt) or gain) or (grawd or iron))) or had) or frank) or san) or land) or (bond or bonds)) or (irans or ((gran or (grain or brain)) or iran))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((((sand OR band) OR (race OR face)) OR ((((migrants OR migraindts) OR grandt) OR gain) OR (grawd OR iron))) OR had) OR frank) OR san) OR land) OR (bond OR bonds)) OR (irans OR ((gran OR (grain OR brain)) OR iran))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((((((sand OR band) or (race or face)) or ((((migrants or migraindts) or grandt) or gain) or (grawd or iron))) or had) or frank) or san) or land) or (bond or bonds)) or (irans or ((gran or (grain or brain)) or iran))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((((((sand OR band) or (race or face)) or ((((migrants or migraindts) or grandt) or gain) or (grawd or iron))) or had) or frank) or san) or land) or (bond or bonds)) or (irans or ((gran or (grain or brain)) or iran))) counterinsurgency study ;*.