Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
tran tuan » tran xuan, tran thanh, tranh luan
cong tang » cong thang, cong tan, cong lang
ho chieu » theo chieu, hoc thieu, doi chieu
tang van » dang van, hoang van, trong van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((tran tuan) or (tran quang)) nhung cong tang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((tran tuan) OR (tran quang)) nhung cong tang van ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((tran tuan) or (tran quang)) nhung cong tang van ban*.