Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
tranh cua » doanh cua, manh cua
dung cong » dung trong
tran chau » tranh chap
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
tran cau » toan cau, ran cau, tra cau
tran huu » tran duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - canh tranh cua dung cong san ((tran cau) or (((tran chau) OR (tran huu))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh tranh cua dung cong san ((tran cau) OR (((tran chau) OR (tran huu)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - canh tranh cua dung cong san ((tran cau) or (((tran chau) OR (tran huu))))".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh tranh cua dung cong san ((tran cau) or (((tran chau) OR (tran huu))))*.