Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tran » hanh trang, thanh tran, hanh tram
van thong » van thuong, van phong, va thong
hoang van » hang va
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
dang van » hang va
toan cao » toan tap
toan ban » van ban

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 van thong ((dang van) or (hoang van)) ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tran van thong ((dang van) OR (hoang van)) ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tran van thong ((dang van) or (hoang van)) ((toan cao) or (toan ban))*.