Perhaps you should try some spelling variations:
chen chan » chen chuan, cheung chan, chen chung
wing ian » wing tan, twinn ian, wing sun
chan eng » chan fong, chan kang, chan ming
code ctu » code pt
yang xi » yang di, yang jui
yang yi » yang di, yang jui
yan zi » yan zhi, yuan zi, ban zi
code c » code _, code 2, code 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 ian ((((yang xi) or (yang yi))) or (yan zi)) chen chan eng ((code ctu) OR (code c)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ian ((((yang xi) OR (yang yi))) OR (yan zi)) chen chan eng ((code ctu) OR (code c)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing ian ((((yang xi) or (yang yi))) or (yan zi)) chen chan eng ((code ctu) OR (code c)) ;*".