Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, mot chieu
trinh dan » trinh han, trinh san, trinh da
dung song » dung cong, dung dong, vung song
thanh hai » thanh phan, thanh hoa, thanh san
thanh nga » thanh ngu, thanh nhan, nhanh ngan
dan dung » van dung, tin dung, ap dung
song van » hoang van, trong van, duong van

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trinh dan dung song van ((thanh hai) or (thanh nga))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh dan dung song van ((thanh hai) OR (thanh nga))*.