Perhaps you should try some spelling variations:
thanh trung » thanh tung
tieu danh » dieu danh, tiep danh, thien danh
trung cao » truong cao, trung cap, trung co
tong cong » trong cong, cong cong, dung cong
van thanh » ban thanh, van tuan
cao tong » cao tang, cao cong, cao dong
dan than » dan chan, ban than, van than

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 danh - thanh trung cao tong cong ((dan than) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu danh - thanh trung cao tong cong ((dan than) OR (van thanh)) cau*.