Perhaps you should try some spelling variations:
rand » brand, sand
grand » gbrand, gsand, brand, irand, grawd, grayd
rank » frank
ranks » franks, banks
bond » bonds
grants » migrants, irants, grawts, grayts
grain » brain, rain
graint » braint, raint, geraint, grains, gradient
grantdtd » granted, irantdtd, grawtdtd, graytdtd
grawe » grade, grace, graw
gran » iran, graw, gray
grant » irant, grawt, grayt

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: ((((((rand OR grand) OR (rank OR ranks)) OR (hand OR hard)) OR (had OR land)) OR ((band OR bank) OR bond)) OR (((((grants OR grain) OR grantdtd) OR grawe) OR (gran OR grant)) OR graint)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((rand or grand) or (rank or ranks)) or (hand or hard)) or (had or land)) or ((band or bank) or bond)) or (((((grants or grain) or grantdtd) or grawe) or (gran OR grant)) or graint)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((((rand or grand) or (rank or ranks)) or (hand or hard)) or (had or land)) or ((band or bank) or bond)) or (((((grants or grain) or grantdtd) or grawe) or (gran OR grant)) or graint)) counterinsurgency study ;*.