Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
doi chieu » doc hieu, doi chi, ho chieu
va phuong » va thuong, cac phuong
va duong » van duong, va tuong, va huong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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: doi chieu tinh - canh tranh ((va duong) or (va phuong)) cong van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - canh tranh ((va duong) OR (va phuong)) cong van toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - canh tranh ((va duong) or (va phuong)) cong van toan cao*.