Perhaps you should try some spelling variations:
known about » know about
chen yang » chen rong
song sau » kong sar, song pae, song so
wong sau » wong sam, wong siu, wong shiu
yang yi » yang di, yang jui
yang xi » yang di, yang jui
a chen » ta chen, _ chen, n chen
yi a » kyi a, yi ta, i a

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (wing or wan) yang yi a chen yang xi ((((song sau) OR (wong sau))) or (known about)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wing OR wan) yang yi a chen yang xi ((((song sau) OR (wong sau))) OR (known about)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wing or wan) yang yi a chen yang xi ((((song sau) OR (wong sau))) or (known about)) ;*".