Perhaps you should try some spelling variations:
wang ying » wang yang, wang yong, wang jing
ying ying » ying yang, yirong ying, liang ying
yang minh » yang mind, kang minah, anh minh
sang minh » kang minah, anh minh, song min
ying hua » ming hua, wang hua, ying zhu
hua gene » human gene, a gene, hua ren
long shu » cong shu, tong shui, long du

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ying ying hua gene ((yang minh) or (sang minh)) long shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ying ying hua gene ((yang minh) OR (sang minh)) long shu ;*.