Perhaps you should try some spelling variations:
thanh tung » thanh cong
toan khong » toan thong, toan khung, toan thuong
khong cong » thong cong, khong cang, chong cong
theo chau » theo chu, theo chieu, theo cap
theo phap » thi phap
tung toan » dung toan, truong toan, quang toan
dan thanh » dang thanh, danh thanh, ban thanh
thanh hai » thanh phan, thanh hoa, thanh san
cong dan » cong san, cong tan, huong dan

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) or (theo phap)) tinh - thanh tung toan khong cong dan thanh hai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chau) OR (theo phap)) tinh - thanh tung toan khong cong dan thanh hai.
• Adding a wildcard symbol may retrieve word variants: ((theo chau) or (theo phap)) tinh - thanh tung toan khong cong dan thanh hai*.