Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
gian cao » gian cac, gian co, giai cao
lan anh » van anh, tuan anh
va lang » hoa lang
va nang » van nang, da nang, cam nang

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 - lan anh ((va lang) or (va nang)) cong dan gian cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - lan anh ((va lang) OR (va nang)) cong dan gian cao*.