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
hieu manh » chieu xanh, hieu nganh, dieu hanh
tien manh » tien anh, tien thanh, tieng anh
cong san » cong tac
san than » sang than, san thanh, 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: toc ((hieu manh) or (tien manh)) - thanh trung tuan trong cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu manh) OR (tien manh)) - thanh trung tuan trong cong san than cau.
• Adding a wildcard symbol may retrieve word variants: toc ((hieu manh) or (tien manh)) - thanh trung tuan trong cong san than cau*.