Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
tranh van » tran van, trinh van, thanh van
trong san » trong cac, cong san, dong san
doc hieu » toc thieu, hoc thieu, hoc hien
van dung » van dong, xay dung, tin dung
san phat » san pham, van phat, tan phat
phat cau » phan cau, pha cau, phap cau

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 dung trong san phat cau~.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - canh tranh van dung trong san phat cau*.