Perhaps you should try some spelling variations:
thanh tung » thanh cong
hieu xanh » chieu xanh, hieu manh, hieu nganh
cap nhung » cam nhung, vap nhung, dap nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cam hung » cac chung, cam nang, van hung
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh tung ((cap nhung) or (cam hung)) cong van than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh tung ((cap nhung) OR (cam hung)) cong van than cap*.