Perhaps you should try some spelling variations:
vuong thuat » thuong thuat, trong thuat, vuong tat
nhung cong » dung cong, thong cong, hang cong
cong thuc » cong tac
ban thanh » ban hanh, ban hang
thanh cau » thanh chau, thanh mau, nhanh cau
cong ban » cong bang, cong san, cong tan
doi chi » doi khi
chi anh » chi danh, chi hanh, thi anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi anh - thanh ((vuong thuat) or (cong thuc)) nhung cong ban thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi anh - thanh ((vuong thuat) OR (cong thuc)) nhung cong ban thanh cau.
• Adding a wildcard symbol may retrieve word variants: doi chi anh - thanh ((vuong thuat) or (cong thuc)) nhung cong ban thanh cau*.