Perhaps you should try some spelling variations:
chang dong » change long, change hong, chang won
yang yang » wang yang, wang yan
jin chang » chin chang, joon chang, ying chang
yan tang » tang tang, yan liang, yan zhang
yan wang » yuan wang, qian wang, yan liang
wai yan » wang yan, wei yang
sin » sign, sind, skin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wai yan) or (dong di)) nan ((((yan tang) OR (yang yang))) or (yan wang)) jin chang dong sin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wai yan) OR (dong di)) nan ((((yan tang) OR (yang yang))) OR (yan wang)) jin chang dong sin ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wai yan) or (dong di)) nan ((((yan tang) OR (yang yang))) or (yan wang)) jin chang dong sin ;*".