Perhaps you should try some spelling variations:
chang soon » chang won, chin soon, chang gordon
main chang » main changes, main chance, main charge
wang yang » wang yan, wang liang, wang yanling
soon hong » soon heng, boon chong, soon siong
hong yu » wong yue
yet a » et a, yet _, get a
y a » y la
dong » doing, long, done

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong sin) or (wang yang)) ((y a) or (yet a)) main chang soon hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong sin) OR (wang yang)) ((y a) OR (yet a)) main chang soon hong yu ;.
• Adding a wildcard symbol may retrieve word variants: ((dong sin) or (wang yang)) ((y a) or (yet a)) main chang soon hong yu ;*.