Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
luat tong » luat trong, luat thong, luat bong
luat cong » thuat cong, luat chung, cua cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cau » phan cau, can cau, chinh cau

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 tinh) or (chieu sach)) - canh trinh ((luat tong) OR (luat cong)) cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chieu sach)) - canh trinh ((luat tong) OR (luat cong)) cong dan chan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) or (chieu sach)) - canh trinh ((luat tong) OR (luat cong)) cong dan chan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (chieu sach)) - canh trinh ((luat tong) OR (luat cong)) cong dan chan cau*.