Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
chinh quan » chinh luan, chinh quyen, chinh ngan
quan dong » quang dong, quan long, quan hoang
cong tinh » cong trinh, long tinh, cong thanh
cong vinh » cong trinh, trong vinh, cong viec
toan cau » 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: chao ((chieu sach) or (chieu tinh)) - hanh chinh quan dong ((cong tinh) OR (cong vinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chieu sach) OR (chieu tinh)) - hanh chinh quan dong ((cong tinh) OR (cong vinh)) toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chieu sach) or (chieu tinh)) - hanh chinh quan dong ((cong tinh) OR (cong vinh)) toan cau*".