Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nang dong » nang song, lang dong, nang luong
qua trong » quan trong, qua song, qua cong
qua trinh » qua kinh
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
phan dau » phan tu, hang dau

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 - nang dong ((qua trong) or (qua trinh)) cong dan ((than cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - nang dong ((qua trong) OR (qua trinh)) cong dan ((than cau) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - nang dong ((qua trong) or (qua trinh)) cong dan ((than cau) or (phan dau))*.