Perhaps you should try some spelling variations:
thanh tung » thanh cong
dien sach » dien anh
dang cong » dung cong
nhanh cau » nhanh cay, thanh chau, nhanh ha
doc dien » duoc dien, doi dien, do dien
cua dang » cua cong, cua ban
cong tac » cong ty
nhan sau » nhan su, nhan san, thanh sau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc dien sach - ((thanh trung) or (thanh tung)) cua dang cong tac ((nhan sau) OR (nhanh cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc dien sach - ((thanh trung) OR (thanh tung)) cua dang cong tac ((nhan sau) OR (nhanh cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc dien sach - ((thanh trung) or (thanh tung)) cua dang cong tac ((nhan sau) OR (nhanh cau))".
• Adding a wildcard symbol may retrieve word variants: doc dien sach - ((thanh trung) or (thanh tung)) cua dang cong tac ((nhan sau) OR (nhanh cau))*.