Perhaps you should try some spelling variations:
cheng zhang » cheng han, zhen zhang, china zhang
chen zheng » chen zhen, chen aizheng, chen zhe
long kong » hong kong, king kong, long bond
min jeong » kin keong, min hong, mun leong
jeong 情 » jeong _, jeongui 情, jeong mi
kong yan » kong yam, dong yang, kong hang
yan zhi » yan zi, wang zhi

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

• Performing a fuzzy search may retrieve terms with similar spellings: long kong yan zhi ((cheng zhang) or (chen zheng)) min jeong 情 ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: long kong yan zhi ((cheng zhang) OR (chen zheng)) min jeong 情 ;*.