Perhaps you should try some spelling variations:
sand » stand, san
hand » hard
band » bank
bond » bonds
grand » brand, irand, grawd, grayd
grandtd » brandtd, irandtd, grawdtd, graydtd
grawd » graw
grad » grid, graw, gray
grade » gride, grawe, graye, trade
grawe » grace, graw, grave
gran » iran, graw, gray
grant » irant, grawt, grayt, grants
grawt » graw, graft
graint » geraint, grains, gradient, braint, raint
grain » brain, rain

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 hand) or (had or land)) or (band or bond)) or ((((((grand OR grawd) or grad) or grandtd) or (grawe or grade)) or (gran or (grant or grawt))) or (graint or grain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((sand OR hand) OR (had OR land)) OR (band OR bond)) OR ((((((grand OR grawd) OR grad) OR grandtd) OR (grawe OR grade)) OR (gran OR (grant OR grawt))) OR (graint OR grain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((sand or hand) or (had or land)) or (band or bond)) or ((((((grand OR grawd) or grad) or grandtd) or (grawe or grade)) or (gran or (grant or grawt))) or (graint or grain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((sand or hand) or (had or land)) or (band or bond)) or ((((((grand OR grawd) or grad) or grandtd) or (grawe or grade)) or (gran or (grant or grawt))) or (graint or grain))) counterinsurgency study ;*.