Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung cua » truong cua, trung tuan, trung cap
ban cong » bang cong, van cong, phan cong
cong dan » cong san, cong tan, huong dan
sach mau » sach dau, sach dao, bach mai
chu van » cuu van
cac mau » cam mau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu van) OR (chu han)) - thanh trung cua ban cong dan ((cac mau) or (sach mau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu van) OR (chu han)) - thanh trung cua ban cong dan ((cac mau) OR (sach mau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu van) OR (chu han)) - thanh trung cua ban cong dan ((cac mau) or (sach mau))".
• Adding a wildcard symbol may retrieve word variants: theo ((chu van) OR (chu han)) - thanh trung cua ban cong dan ((cac mau) or (sach mau))*.