Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
quan trong » gian trong
anh trong » anh thuong, dinh trong, lang trong
chua nang » chuc nang, chua xang, kha nang
nang dung » dang dung, nang dong, rang dung
ho chieu » theo chieu, hoc thieu, mot chieu
dung dan » dung dat, dung san, tung dan
dan van » dang van, doan van, dao van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((quan trong) OR (anh trong)) chua nang dung dan van ban~.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((quan trong) or (anh trong)) chua nang dung dan van ban*.