Ngā hua rapu - (( materal ((health devices) OR (health services)). ) OR ( materal health series. ))~
Kāore tō rapu - (( materal ((health devices) OR (health services)). ) OR ( materal health series. ))~ - i ōrite ki tētahi rauemi.
Me whakamātau pea he takikupu rerekē:
- materal »
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: "(( materal ((health devices) OR (health services)). ) OR ( materal health series. ))~".
- Mā te tāpiri tohu kārimākā e tikia atu ai pea ngā rerekētanga ā-rohe: (( materal ((health devices) OR (health services)). ) OR ( materal health series. ))*.