Perhaps you should try some spelling variations:
thanh trung » thanh tung
duong cong » dung cong, luong cong, duong trong
tieu danh » tiep danh, thien danh, dieu hanh
dieu danh » dieu hanh, dia danh, dien anh
trung cua » truong cua, trung tuan, trung cap
cua duong » cua dong, cua huong, qua duong
cong tan » cong tac, cong san, cong thanh
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

You may be able to get more results by adjusting your search query.

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