Perhaps you should try some spelling variations:
sand » stand, band
grand » grant, brand, grantd, graind, grawd
grawd » graw, grawe
grad » grade, grid, graw
hand » had, band, hard
bond » bonds
irans » trans, frans, irani
grants » grantts, graints, grawts
migrants » migrantts, migraints, migrawts
gran » grant, grain, graw

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((((sand OR raw) OR ((((grants OR migrants) OR grand) OR gains) OR ((grawd OR grad) OR iron))) OR hand) OR frank) OR san) OR land) OR bond) OR (irans OR (gran OR iran))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((((sand or raw) or ((((grants or migrants) or grand) or gains) or ((grawd OR grad) or iron))) or hand) or frank) or san) or land) or bond) or (irans or (gran or iran))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((((((sand or raw) or ((((grants or migrants) or grand) or gains) or ((grawd OR grad) or iron))) or hand) or frank) or san) or land) or bond) or (irans or (gran or iran))) counterinsurgency study ;*.