Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
ban nhung » san nhung, ban phuong, gian nhung
hoang van » hang va
ho chieu » theo chieu, hoc thieu, doi chieu
hanh van » thanh van, khanh van, hanh va
dang van » hang va
than cau » toan cau, phan cau, than cap

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