Perhaps you should try some spelling variations:
rand » brand, grand, band
granddk » gbranddk, ggranddk, gbanddk, grantddk, grainddk, grandddk
hand » band, hard
gran » grant, grain, grand
grantd » granttd, graintd, grandtd, granted, grants, grant
iggrantdd » iggranttdd, iggraintdd, iggrandtdd, iggrantedd, iggrantsd, iggrantd
rain » brain, main, gain
grained » gbrained, gmained, ggained, trained
gbrained » gbbrained, gbmained, gbgained, obtained, trained, drained
strained » stbrained, stmained, stgained, trained, strain, attained
grawt » grant, graw, graft

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 (hand or had)) or (bank or land)) or (((granddk or ((gran or grantd) or rain)) or ((igrawd or iggrantdd) or ((grained or (gbrained OR strained)) or gained))) or grawt)) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((rand OR (hand OR had)) OR (bank OR land)) OR (((granddk OR ((gran OR grantd) OR rain)) OR ((igrawd OR iggrantdd) OR ((grained OR (gbrained OR strained)) OR gained))) OR grawt)) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((rand or (hand or had)) or (bank or land)) or (((granddk or ((gran or grantd) or rain)) or ((igrawd or iggrantdd) or ((grained or (gbrained OR strained)) or gained))) or grawt)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((rand or (hand or had)) or (bank or land)) or (((granddk or ((gran or grantd) or rain)) or ((igrawd or iggrantdd) or ((grained or (gbrained OR strained)) or gained))) or grawt)) counterinsurgency study ;*.