Perhaps you should try some spelling variations:
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
hien hanh » dieu hanh
van thanh » ban thanh, van tuan
va thong » va thuong, va phuong, he thong
van toan » van tuan, van tan, manh toan
tung va » trung va, tuong va, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - thanh tung va thong cong ((van toan) or (van thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - thanh tung va thong cong ((van toan) OR (van thanh)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh tung va thong cong ((van toan) or (van thanh)) cao*.