Perhaps you should try some spelling variations:
rand » brand, grand, band
hand » band, hard
grawd » grand, grawe, growd, drawd, grewd
grad » grand, grid, gray
grade » grande, gride, graye, trade
graw » grow, draw, grew
gran » grand, iran, gray
grant » grandt, irant, grayt, grants
grain » brain, gbrain, gmain, ggain
grains » brains, gbrains, gmains, ggains
graints » braints, gbraints, gmaints, ggaints, grants, gradients, geraints
graint » braint, gbraint, gmaint, ggaint, geraint, gradient
irani » iran, iraqi, rani
rain » brain, main, gain
geraints » gebraints, gemaints, gegaints, geraint, gerais

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 ((((grawd or ((grad or grade) or (graw or raw))) or (gran OR grain)) or (irani or (grains or rain))) or ((graints or geraints) or (grant or graint)))) 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 ((((grawd OR ((grad OR grade) OR (graw OR raw))) OR (gran OR grain)) OR (irani OR (grains OR rain))) OR ((graints OR geraints) OR (grant OR graint)))) 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 ((((grawd or ((grad or grade) or (graw or raw))) or (gran OR grain)) or (irani or (grains or rain))) or ((graints or geraints) or (grant or graint)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((rand or (hand or had)) or (bank or land)) or ((((grawd or ((grad or grade) or (graw or raw))) or (gran OR grain)) or (irani or (grains or rain))) or ((graints or geraints) or (grant or graint)))) counterinsurgency study ;*.