Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
hai chuan » say chuan, ka chuan, tai chun
gene yang » gene bank
wong shiu » wong siu, cong shu, wong sau
yang jin » yang jie, yang jun, ying jin
ka hua » ya hua, ka chuan
shin » skin, sein, thin

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang ((ka hua) or (hai chuan)) gene yang jin ((hong seo) or (((wong shiu) OR (song shin)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang ((ka hua) OR (hai chuan)) gene yang jin ((hong seo) OR (((wong shiu) OR (song shin)))) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang ((ka hua) or (hai chuan)) gene yang jin ((hong seo) or (((wong shiu) OR (song shin)))) ;".
• Adding a wildcard symbol may retrieve word variants: yang yang ((ka hua) or (hai chuan)) gene yang jin ((hong seo) or (((wong shiu) OR (song shin)))) ;*.