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.

Mā te whakahaere i te rapu makaro e tīkina atu ai pea ngā kupu he ōrite te takikupu: (("walter conservation") OR ("water construction"))~.
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 ))*.