Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung chan » trung phan, trong chan, trung can
tieu xanh » tieu danh, chieu xanh, dieu hanh
chan dung » van dung, dan dung
cong dan » cong tan, cong dong, cong tac
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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 trung chan dung ((((cong dan) OR (cong san))) or (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh trung chan dung ((((cong dan) OR (cong san))) OR (huong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - thanh trung chan dung ((((cong dan) OR (cong san))) or (huong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh trung chan dung ((((cong dan) OR (cong san))) or (huong dan)) toan cau*.