Perhaps you should try some spelling variations:
thanh trung » thanh tung
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trung dai » truong dai, truong dao, trung tam
dung cong » dung trong
ho chiet » ho chieu, ho thiet, hoa thiet
dai dung » dai duong, dan dung, mai dung
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chiet) or (hoc thiet)) tach - thanh trung dai dung cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chiet) OR (hoc thiet)) tach - thanh trung dai dung cong san ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((ho chiet) or (hoc thiet)) tach - thanh trung dai dung cong san ((toan cau) or (toan ban))*.