Perhaps you should try some spelling variations:
thuong tinh » khuong tinh, thuong binh, truong tinh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh dung » thanh duong, thanh tung, thanh hung
phong tinh » phong thanh, khuong tinh, thong tin
dung tam » duong tam, dung tai, dung lam
toan cau » toan cao, toan ban, toan tap
tam van » nam van, dam van, tom van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (dieu hanh)) - thanh dung tam van ((phong tinh) OR (thuong tinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (dieu hanh)) - thanh dung tam van ((phong tinh) OR (thuong tinh)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (dieu hanh)) - thanh dung tam van ((phong tinh) OR (thuong tinh)) toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (dieu hanh)) - thanh dung tam van ((phong tinh) OR (thuong tinh)) toan cau*.