Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc chinh » hoan chinh, hoc sinh, hoc kinh
van duong » van dong, van dung, van phong
trong ban » trong san, trong tan, trong quan
va tuong » va thuong, va thong, xa truong
ban hang » ngan hang
hang cau » hang dau, hang ca, nhung cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - thanh tung ((va tuong) or (van duong)) trong ban hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - thanh tung ((va tuong) OR (van duong)) trong ban hang cau.
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - thanh tung ((va tuong) or (van duong)) trong ban hang cau*.