Perhaps you should try some spelling variations:
thanh tung » thanh cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tung cua » trung cua, tuong cua, dung cua
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
hoa dau » hoa dan, hoa dai, hoa dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh tung cua dung ((cong tan) OR (cong san)) hoa dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh tung cua dung ((cong tan) OR (cong san)) hoa dau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh tung cua dung ((cong tan) OR (cong san)) hoa dau*.