Perhaps you should try some spelling variations:
rand » brand, grand, hand
irand » ibrand, igrand, ihand, brand, iran, grand
igrand » igbrand, iggrand, ighand, grand, igrantd, igraind, igrandd
grandt » gbrandt, ggrandt, ghandt, grantdt, graindt, granddt, grant, grand, grande
band » bond
gran » grant, grain, grand
sand » stand, san, hand
ghad » ghada, gad, shad
grad » grade, grand, grid
chad » cham

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 bank) or band) or ((((((irand or igrand) or ((gran or (gfrank OR frank)) or (gfrank OR frank))) or sand) or grandt) or land) or ((((ghad or grad) or chad) or had) or hard))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((rand OR bank) OR band) OR ((((((irand OR igrand) OR ((gran OR (gfrank OR frank)) OR (gfrank OR frank))) OR sand) OR grandt) OR land) OR ((((ghad OR grad) OR chad) OR had) OR hard))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((rand or bank) or band) or ((((((irand or igrand) or ((gran or (gfrank OR frank)) or (gfrank OR frank))) or sand) or grandt) or land) or ((((ghad or grad) or chad) or had) or hard))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((rand or bank) or band) or ((((((irand or igrand) or ((gran or (gfrank OR frank)) or (gfrank OR frank))) or sand) or grandt) or land) or ((((ghad or grad) or chad) or had) or hard))) counterinsurgency study ;*.