Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
phuong dan » phuong danh, phuong doan, phuong lan
doi chieu » doc hieu, doi chi, ho chieu
hang tang » hang hang, hoang trang, cang thang
tang luan » dung luan
luan dung » lan dung, luan dong, luan hung
than cau » toan cau, phan cau, than cap

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 - hang tang luan dung ((phuong dan) or (huong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hang tang luan dung ((phuong dan) OR (huong dan)) than cau.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hang tang luan dung ((phuong dan) or (huong dan)) than cau*.