Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung bang » nhung lang, nhung bong, nhung cang
tranh cua » doanh cua, manh cua
cua nhung » va nhung
bang van » dang van, tang van, lang 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 bang 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 bang van ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - canh tranh cua nhung bang van ((toan tai) or (toan tap))*.