Ngā hua rapu - (( bibliography 20th century ) OR ( ((geography 20th) OR (biography 20th)) century ))~
Kāore tō rapu - (( bibliography 20th century ) OR ( ((geography 20th) OR (biography 20th)) century ))~ - 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: "(( bibliography 20th century ) OR ( ((geography 20th) OR (biography 20th)) century ))~".
- Mā te tāpiri tohu kārimākā e tikia atu ai pea ngā rerekētanga ā-rohe: (( bibliography 20th century ) OR ( ((geography 20th) OR (biography 20th)) century ))*.