Perhaps you should try some spelling variations:
rand » brand, grand, hand
band » bank
grawd » grand, graw, grad
grantdtd » granted
grawe » grade, grace, graw
grants » migrants
gmain » gain, grain, smain
rain » brain, gain, rail
maint » saint, paint, mains

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 (band or (bond or bonds))) or (((((grawd or grawd) or grantdtd) or grawe) or ((grant OR grants) or ((gmain or main) or rain))) or maint)) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR hard) OR (had OR land)) OR (band OR (bond OR bonds))) OR (((((grawd OR grawd) OR grantdtd) OR grawe) OR ((grant OR grants) OR ((gmain OR main) OR rain))) OR maint)) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or hard) or (had or land)) or (band or (bond or bonds))) or (((((grawd or grawd) or grantdtd) or grawe) or ((grant OR grants) or ((gmain or main) or rain))) or maint)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or (band or (bond or bonds))) or (((((grawd or grawd) or grantdtd) or grawe) or ((grant OR grants) or ((gmain or main) or rain))) or maint)) counterinsurgency study ;*.