Perhaps you should try some spelling variations:
nhiet tach » chiet tach
hoc nhiet » hoc thiet, hoc nghien, hoc hien
chua dong » cua dong, ha dong, huy dong
cua dang » cua cong, cua ban
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nhiet tach - canh tranh ((chua dong) or (cua dang)) cong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nhiet tach - canh tranh ((chua dong) OR (cua dang)) cong van toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc nhiet tach - canh tranh ((chua dong) or (cua dang)) cong van toan cau*.