Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
quang doan » quan doan, quang hoan, quang toan
dung toan » dung doanh, dung thang, dung thanh
tranh va » tranh van, trang va, trinh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu tinh - canh tranh va thuong cong ((dung toan) or (quang doan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - canh tranh va thuong cong ((dung toan) OR (quang doan)) cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu tinh - canh tranh va thuong cong ((dung toan) or (quang doan)) cao*.