Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
trung cap » truong cao, trung tam
cong danh » cuong danh, cong dan, cong thanh
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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