Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hang hang » nang hang, cang thang, hung thang
bang cong » dang cong, bang song, hang cong
hang cua » mang cua, hang ca, huong cua
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, huong dan
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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 (chieu tinh)) - hang hang cua bang cong dan ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu tinh)) - hang hang cua bang cong dan ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu tinh)) - hang hang cua bang cong dan ((toan cau) or (toan cao))*.