Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
trong van » trong cac
cong van » cong vang, cong san, song van
toan tap » toan ban

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 - hanh tranh cua nhung ((cong van) or (trong van)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu tinh - hanh tranh cua nhung ((cong van) OR (trong van)) toan tap*.