Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
phan cong » thanh cong
van phong » van dong, hai phong
ho chiet » ho chieu, ho thiet, hoc thiet
san toan » van toan, dan toan, manh toan
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: ho chiet tach - hanh tranh cua ((phan cong) or (van phong)) san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chiet tach - hanh tranh cua ((phan cong) OR (van phong)) san toan cao.
• Adding a wildcard symbol may retrieve word variants: ho chiet tach - hanh tranh cua ((phan cong) or (van phong)) san toan cao*.