Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh dung » thanh duong, thanh tung, thanh hung
dong trong » duong trong, dung trong, cong trong
trong toan » truong toan, trong tan, trong hoan
hanh dung » anh dung, hanh dong, manh dung
luan dong » luan cong, quan dong, luan nong
ho chieu » theo chieu, hoc thieu, mot chieu
toan cap » toan tap, toan cao, toan cau

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 dung) or (thanh dung)) luan dong trong toan cap cho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((hanh dung) OR (thanh dung)) luan dong trong toan cap cho*.