Perhaps you should try some spelling variations:
rand » brand, hand, rank
grand » gbrand, ghand, grank, grant, brand
sand » stand, san, hand
ghand » hand, ghana, ghani
ghard » guard, gharo
harm » farm
ghart » chart, gharo, gheart, gchart, gpart
gchart » chart, echart, gcheart, gcchart, gcpart
hari » hadi, haji, ari
hart » heart, chart, part

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 (hard OR had)) OR land) OR (bond OR bonds)) OR (((grand OR ghand) OR (gband OR (band OR bank))) OR (ghard OR ((harm OR (ghart OR gchart)) OR (hari OR hart))))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or sand) or (hard or had)) or land) or (bond or bonds)) or (((grand or ghand) or (gband or (band or bank))) or (ghard or ((harm or (ghart OR gchart)) or (hari or hart))))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand or sand) or (hard or had)) or land) or (bond or bonds)) or (((grand or ghand) or (gband or (band or bank))) or (ghard or ((harm or (ghart OR gchart)) or (hari or hart))))) counterinsurgency study ;*.