Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
tieu xanh » chieu xanh, dieu hanh, tien anh
tieu danh » dieu danh, tiep danh, thien danh
trung cua » truong cua, trung cap, dung cua
dong tai » dung tai, luong tai, cong tac
tai toan » bai toan, tap toan, tai tuan
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) OR (tieu danh)) - hanh ((trung cua) or (trung tuan)) cong dong tai toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (tieu danh)) - hanh ((trung cua) OR (trung tuan)) cong dong tai toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (tieu danh)) - hanh ((trung cua) or (trung tuan)) cong dong tai toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) OR (tieu danh)) - hanh ((trung cua) or (trung tuan)) cong dong tai toan cau*.