Ohcanbohtosat - (("drugs: educacion, prevention AND policy") OR ("drugs: reduccion, prevention AND policy"))*
Ozuin - (("drugs: educacion, prevention AND policy") OR ("drugs: reduccion, prevention AND policy"))* - eai gávdnon bohtosat.
Gánnáha geahččalit iešguđetlágán čállinhámiid:
- "drugs: educacion, prevention AND policy" »
- "drugs: reduccion, prevention AND policy" »
Sáhtát oažžut lasi bohtosiid go hábmet iežat ohcama.
- Seđđon ohcamiin sáhttet gávdnot ohcanbohtosat, main leat seammasullasaš sánit: (("drugs: educacion, prevention AND policy") OR ("drugs: reduccion, prevention AND policy"))~.
- Sánit AND, OR ja NOT sáhttet moivet ohcama; geahččal lasihit aisttonmearkkaid ohcansániid birra: "((\"drugs: educacion, prevention AND policy\") OR (\"drugs: reduccion, prevention AND policy\"))*".
- Sáhtát oažžut eanet bohtosiid go sihkut aisttonmearkkaid: (( drugs: educacion, prevention AND policy ) OR ( drugs: reduccion, prevention AND policy ))*.