Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
tang van » dang van, hoang van, trong van
lang van » dang van, hoang van, giang van
toan tai » doanh tai, toan ban, toan cao
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 sach - canh tranh cua nhung ((tang van) or (lang van)) ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - canh tranh cua nhung ((tang van) OR (lang van)) ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh cua nhung ((tang van) or (lang van)) ((toan tai) or (toan tap))*.