Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
hieu xanh » chieu xanh, hieu manh, hieu nganh
tuong tac » cong tac, luong tai, tuong lai
trong tac » trong cac, trong tan, trong tuc
doc hieu » toc thieu, hoc thieu, hoc hien
tac dung » sach dung, xay dung, tin dung
tac van » tac vang, cac van, tac va

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 tuong tac dung trong tac van ban~.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh tuong tac dung trong tac van ban*.