Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
klang die » klang der, klang iii, klaue die
under age » older age
chan eng » chan fong, chan kang, chan ming
under a » under _
ma kong » ma rong, tan kong, nan kong
ma hong » a hong, kia hong, tan hong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yang) or (chan eng)) klang die ((under age) OR (under a)) ((ma kong) or (ma hong)) sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (chan eng)) klang die ((under age) OR (under a)) ((ma kong) OR (ma hong)) sar ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (chan eng)) klang die ((under age) OR (under a)) ((ma kong) or (ma hong)) sar ;*".