Perhaps you should try some spelling variations:
rand » brand, band, rank
grand » gbrand, gband, grank, grant, brand
sand » stand, band
hand » had, band, hard
bond » bonds
grank » grant, frank, rank
gband » band
ghard » hard, guard
gharo » ghard, gharm, ghero
haro » hard, harm, hero
ghart » chart, gheart, gchart, gart
hari » hard, hadi, harm
hart » heart, chart, art

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 san)) OR hand) OR land) OR bond) OR (((grand OR grank) OR gband) OR ((ghard OR gharo) OR ((haro OR ghart) OR (hari OR (hart OR part)))))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or (sand or san)) or hand) or land) or bond) or (((grand or grank) or gband) or ((ghard or gharo) or ((haro or ghart) or (hari or (hart OR part)))))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((((rand or (sand or san)) or hand) or land) or bond) or (((grand or grank) or gband) or ((ghard or gharo) or ((haro or ghart) or (hari or (hart OR part)))))) counterinsurgency study ;*.