Perhaps you should try some spelling variations:
sand » stand, hand
bond » bonds
grantsed » granted, grants, grafted, grandtsed, irantsed, grawtsed, grantssed
grande » grand, grandde, irande, grawde
grade » trade
emigraints » emigrants, migrants, emigrant, emiraints
grandtk » granddtk, irandtk, grawdtk
gran » grand, iran, graw
grant » grandt, irant, grawt, grants
grain » rain
gband » grand

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 san) or frank) or (band or bond)) or land) or ((((grandtk or grantsed) or ((grande or grade) or emigraints)) or ((gran or (grain OR brain)) or grant)) or (gband or bank))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((sand OR san) OR frank) OR (band OR bond)) OR land) OR ((((grandtk OR grantsed) OR ((grande OR grade) OR emigraints)) OR ((gran OR (grain OR brain)) OR grant)) OR (gband OR bank))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((sand or san) or frank) or (band or bond)) or land) or ((((grandtk or grantsed) or ((grande or grade) or emigraints)) or ((gran or (grain OR brain)) or grant)) or (gband or bank))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((sand or san) or frank) or (band or bond)) or land) or ((((grandtk or grantsed) or ((grande or grade) or emigraints)) or ((gran or (grain OR brain)) or grant)) or (gband or bank))) counterinsurgency study ;*.