Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
canh manh » lanh manh, canh tranh, cach mang
manh cua » doanh cua, ban cua
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
ban can » ban dan, ban hang, ban hanh
van cau » van dau, van hau, van chat

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 manh cua dung ((cong san) or (cong tac)) ((ban can) or (van cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - canh manh cua dung ((cong san) OR (cong tac)) ((ban can) OR (van cau)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - canh manh cua dung ((cong san) or (cong tac)) ((ban can) or (van cau))*.