Perhaps you should try some spelling variations:
yang liping » jiang liping, wang leiping, wang liming
chen chang » chen chung, chin chang, shen chang
seok jeong » seok hong
wang yang » wang yan, wang liang, wang yanling
liping yu » ping yu
soon seng » soon beng, soon heng, khoon seng
yu chen » yu cheng, yi chen, yulu chen

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 liping yu chen chang ((seok jeong) or (soon seng)) seo ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang liping yu chen chang ((seok jeong) OR (soon seng)) seo ;*.