Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung cao » truong cao, trung cap, trung co
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
trong co » trong ca, trong cong, trong cuoc
tan than » tan thanh, tan tran, ban than
than cau » toan cau, phan cau, than cap

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