Perhaps you should try some spelling variations:
hand » had, hard
rank » frank
ranks » franks, banks
grank » gfrank, grant, frank, grand, grantk, graink, grandk
band » bond
grantd » granted, grant, grand, granttd, graintd, grandtd
grants » migrants, grantts, graints, grandts
emigrants » emimigrants, migrants, migrant, emigrantts, emigraints, emigrandts
immigrants » immimigrants, migrants, immigrantts, immigraints, immigrandts
grandk » grand, grande, grantdk, graindk, granddk
graind » grained, grain, grains
gran » grant, grain, grand

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((hand or (rank or ranks)) or san) or ((band or bank) or land)) or (((grantd or grants) or (emigrants OR immigrants)) or ((grank or (grandk or (graind or graind))) or gran))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hand OR (rank OR ranks)) OR san) OR ((band OR bank) OR land)) OR (((grantd OR grants) OR (emigrants OR immigrants)) OR ((grank OR (grandk OR (graind OR graind))) OR gran))) counterinsurgency study ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((hand or (rank or ranks)) or san) or ((band or bank) or land)) or (((grantd or grants) or (emigrants OR immigrants)) or ((grank or (grandk or (graind or graind))) or gran))) counterinsurgency study ;*".