Perhaps you should try some spelling variations:
wang zheng » tang zheng, wang zhenpo, fang sheng
zheng alan » zheng quan, zheng xuan
dang hadi » dang hai
alan hua » alan h, alan a, tan hua
hua gain » heat gain, run gain, hua ban
yang jie » yang jin, yang di, yang jui
wang li » wang lei, wang lin, tang li

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang zheng alan hua gain ((wang li) or (yang jie)) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang zheng alan hua gain ((wang li) OR (yang jie)) dang hadi ;*.