Perhaps you should try some spelling variations:
hanh thuong » khanh thuong, thanh thuong, hang thuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
anh thuong » anh huong, hang thuong, tnhh thuong
trong dan » trong dang, trong san, trong tan
duc dung » duc hung, duc cuong, duc trung
dan van » dang van, doan van, dao van

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 - ((hanh thuong) or (anh thuong)) duc dung trong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh thuong) OR (anh thuong)) duc dung trong dan van ban*.