Perhaps you should try some spelling variations:
yuhan huang » yuhuan huang
wang yuhan » wang luhang, wang yan, wang yidan
long thanh » luong thanh, long han, long trinh
yang lin » yang jin, wang lin, yang liang
huang c » huang _, huang di, huang he
yang li » yang xi, yang yi, tang li
c main » 1 main, 2 main, 3 main

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yuhan huang c main ((((yang lin) or (yang li))) or (yang di)) long thanh ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yuhan huang c main ((((yang lin) OR (yang li))) OR (yang di)) long thanh ;.
• Adding a wildcard symbol may retrieve word variants: wang yuhan huang c main ((((yang lin) or (yang li))) or (yang di)) long thanh ;*.