Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
tranh van » tran van, trinh van, thanh van
van nhung » van nhuong, va nhung, van hung
doc hieu » toc thieu, hoc thieu, hoc hien
cong van » cong vang, song van, cong tan
cong san » cong tac
tuc » thuc, truc

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 - canh tranh van nhung ((cong van) or (cong san)) phong tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - canh tranh van nhung ((cong van) OR (cong san)) phong tuc.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - canh tranh van nhung ((cong van) or (cong san)) phong tuc*.