Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan trong » thuan trong, quan trong, tran trong
dong thanh » truong thanh
tien manh » tien thanh, tieng anh, tran manh
tien anh » tieng anh, dien anh, tien thanh
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: hoc ((tien anh) OR (tien manh)) - thanh trung tuan trong ((dong thanh) or (cong trinh)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien anh) OR (tien manh)) - thanh trung tuan trong ((dong thanh) OR (cong trinh)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tien anh) OR (tien manh)) - thanh trung tuan trong ((dong thanh) or (cong trinh)) than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((tien anh) OR (tien manh)) - thanh trung tuan trong ((dong thanh) or (cong trinh)) than cau*.