Perhaps you should try some spelling variations:
yang thanh » long thanh, van thanh
zhang ming » zhang xin
wang yang » wang yan, wang liang, wang yanling
vu zhang » vu hoang, _ zhang, 14 zhang
li zhang » _ zhang
kang kim » kanaga kim, tan kim, yong kim
song min » song ming, gong min, jong min

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang thanh ((vu zhang) OR (li zhang)) ((kang kim) OR (zhang ming)) song min ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang thanh ((vu zhang) OR (li zhang)) ((kang kim) OR (zhang ming)) song min ;*.