Perhaps you should try some spelling variations:
thanh trung » thanh tung
chon chinh » cho chinh, thon chinh, chinh chinh
trung tuan » trung thanh, trung tam, tran tuan
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: chon chinh sach - thanh trung tuan ((hang cong) or (dang cong)) dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chon chinh sach - thanh trung tuan ((hang cong) OR (dang cong)) dan chan cau.
• Adding a wildcard symbol may retrieve word variants: chon chinh sach - thanh trung tuan ((hang cong) or (dang cong)) dan chan cau*.