Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
trong san » trong cac, cong san, dong san
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, dung cua
cua dung » cua dang, cua dong, qua dung
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

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 - thanh tung cua dung trong san ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung cua dung trong san ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung cua dung trong san ((toan tai) or (toan cao))*.