Ngā hua rapu - (( drugs: education, prevencion AND policy ) OR ( drugs: educativo, prevencion AND policy ))~
Kāore tō rapu - (( drugs: education, prevencion AND policy ) OR ( drugs: educativo, prevencion AND policy ))~ - i ōrite ki tētahi rauemi.
Me whakamātau pea he takikupu rerekē:
- education, »
Ka taea pea ētahi hua anō mā te whakakē i tō uiui rapu.
- Kā taea pea e ngā kupu AND, OR me NOT tō rapu te whakapōraru; tāpiritia he tohukī: "(( drugs: education, prevencion AND policy ) OR ( drugs: educativo, prevencion AND policy ))~".
- Mā te tāpiri tohu kārimākā e tikia atu ai pea ngā rerekētanga ā-rohe: (( drugs: education, prevencion AND policy ) OR ( drugs: educativo, prevencion AND policy ))*.