Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
hoc dieu » hoc thieu, hoc hien
va trong » va truong, va tuong, va trung
va thong » va thuong, va phuong, he thong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
chan cao » chan cho, chat cao, chay cao

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

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