Perhaps you should try some spelling variations:
jeong hyeok » jeong dahyeon
wang yang » wang yan, wang liang, wang yanling
yang yang » wang yan
chang min » zhang ming, chang mae, chan ming
yang mind » yang cindy, yang jin, sang minh
yang hai » dang hai, yang hui, shang hai
hai rent » hai ren

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 yang hai rent ((chang min) or (yang mind)) jeong hyeok ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yang hai rent ((chang min) OR (yang mind)) jeong hyeok ;*.