Perhaps you should try some spelling variations:
rand » brand, band, hand
grand » gbrand, gband, ghand, grant, brand
sand » band, san, hand
bond » bonds
rank » ranks, frank
gband » band
hart » heart, part, art
ghart » gheart, gpart, gart, gharo
chart » cheart, cpart, cart, charts

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: (((((rand OR (sand OR stand)) OR (bank OR had)) OR land) OR bond) OR ((rank OR (grand OR gband)) OR (guard OR ((hart OR ghart) OR (hadi OR chart))))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or (sand OR stand)) or (bank or had)) or land) or bond) or ((rank or (grand or gband)) or (guard or ((hart or ghart) or (hadi or chart))))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand or (sand OR stand)) or (bank or had)) or land) or bond) or ((rank or (grand or gband)) or (guard or ((hart or ghart) or (hadi or chart))))) counterinsurgency study ;*.