Perhaps you should try some spelling variations:
using yan » using bank, using ai, using ann
yuan ming » kian ming, tuan minh, chan ming
yuan ting » huang ting, yuan kang, yuan lin
chan kang » chung kang, chan eng, chan fong
kang hong » kong hong, wang hong, kang young
using a » using _
hong yu » wong yue

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

• If you are trying to use Boolean operators, they must be ALL CAPS: done ((using yan) OR (using a)) ((yuan ming) OR (yuan ting)) chan kang hong yu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "done ((using yan) or (using a)) ((yuan ming) OR (yuan ting)) chan kang hong yu ;~".
• Adding a wildcard symbol may retrieve word variants: done ((using yan) or (using a)) ((yuan ming) OR (yuan ting)) chan kang hong yu ;*.