Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
theo chau » theo chu, theo chieu, theo phap
chau tinh » cuu tinh, ha tinh, cua tinh
anh tang » anh bang, anh dang, anh nang
cong tan » cong tac, cong san, cong ty
toan tap » toan ban
tang va » trang va, tang van, thang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chau tinh - anh tang va thuong ((cong tan) OR (cong thanh)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chau tinh - anh tang va thuong ((cong tan) OR (cong thanh)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo chau tinh - anh tang va thuong ((cong tan) OR (cong thanh)) toan tap*.