Perhaps you should try some spelling variations:
sand » stand, san
graint » geraint, grant, grains, grailnt, grainnt, gravint, braint, raint
iravi » ravi, iraqi, irani
rai » rail, rain, ravi
grain » grailn, grainn, gravin, brain, rain
grainn » grailnn, grainnn, gravinn, brainn, rainn, grainne, grains
ranks » banks
hand » hard
band » bank, bond
irans » iran, trans, frans

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 (((iron OR (grow OR raw)) OR graint) OR (iron OR (iravi OR rai)))) OR had) OR ranks) OR hand) OR land) OR band) OR (irans OR (grain OR grainn))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((((sand or (((iron or (grow or raw)) or graint) or (iron or (iravi or rai)))) or had) or ranks) or hand) or land) or band) or (irans or (grain OR grainn))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((((sand or (((iron or (grow or raw)) or graint) or (iron or (iravi or rai)))) or had) or ranks) or hand) or land) or band) or (irans or (grain OR grainn))) counterinsurgency study ;*.