Ngā hua rapu - "(environmental OR environment) (production" OR introduction")~
Kāore tō rapu - "(environmental OR environment) (production" OR introduction")~ - i ōrite ki tētahi rauemi.
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: "\"(environmental OR environment) (production\" OR introduction\")~".
- Mā te tango tohukī e tukua ai pea he rapu whānui ake: (environmental OR environment) (production OR introduction )~.
- Mā te tāpiri tohu kārimākā e tikia atu ai pea ngā rerekētanga ā-rohe: "(environmental OR environment) (production" OR introduction")*.