Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh huong, thanh cuong
thanh tung » thanh cong
tieu sach » chieu sach, dien sach, te sach
cua trong » cua truong, cua trung, qua trong
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cap » khan cap, thanh lap, thanh cac

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 sach - ((thanh tuong) OR (thanh tung)) cua trong cong tan than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - ((thanh tuong) OR (thanh tung)) cua trong cong tan than cap".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - ((thanh tuong) OR (thanh tung)) cua trong cong tan than cap*.