Ngā hua rapu - (("walter conservation") OR ("water construction"))~

Kāore tō rapu - (("walter conservation") OR ("water construction"))~ - 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: "((\"walter conservation\") OR (\"water construction\"))~".
Mā te tango tohukī e tukua ai pea he rapu whānui ake: (( walter conservation ) OR ( water construction ))~.
Mā te tāpiri tohu kārimākā e tikia atu ai pea ngā rerekētanga ā-rohe: (("walter conservation") OR ("water construction"))*.