Perhaps you should try some spelling variations:
muong thanh » truong thanh, dong thanh, quang thanh
chieu sach » chinh sach, chieu sang, chieu xanh
cong thanh » dong thanh, cong trinh, truong thanh
tong cong » trong cong, cong cong, dung cong
cong tan » cong tac, cong san, cong ty
tran tap » toan tap, tran tan, tran tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) OR (chiet tach)) - nhanh ((muong thanh) or (cong thanh)) tong cong tan tran tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - nhanh ((muong thanh) OR (cong thanh)) tong cong tan tran tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chiet tach)) - nhanh ((muong thanh) or (cong thanh)) tong cong tan tran tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chiet tach)) - nhanh ((muong thanh) or (cong thanh)) tong cong tan tran tap*.