Perhaps you should try some spelling variations:
huang cheng » huang chang, hong cheng, huang weng
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
heng wong » zheng rong, zheng cong, zheng song
wong siu » wong shiu, kong siu, wong sau
li kong » li cong, li rong
li song » li cong, li rong, kim song

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 (huang cheng)) yang yang ((li kong) OR (li song)) heng wong siu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (huang cheng)) yang yang ((li kong) OR (li song)) heng wong siu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (huang cheng)) yang yang ((li kong) OR (li song)) heng wong siu ;*".