Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
quang cong » quang cuong, quang dong, quang hoang
hieu lang » chieu sang, hieu quang, nhieu tang
bai trong » bi trong, tai trong, bui trong
hanh han » hanh nhan, hanh phan, hanh san
va quang » van quang, vu quang, va quan
cong bai » cuong bai, cong hai, cung bai
trong co » trong ca, trong cong, trong cuoc
han va » hang va, hanh va, nhan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (hieu lang)) - hanh han va quang cong bai trong co~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (hieu lang)) - hanh han va quang cong bai trong co.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (hieu lang)) - hanh han va quang cong bai trong co*.