Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
tran van » luan van
cong dan » cong san, cong tan, cong dong
phan cau » phan dau, phan cac, phan tu

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 tinh) or (chieu sach)) - canh tran van nhung ((cong dan) or (huong dan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chieu sach)) - canh tran van nhung ((cong dan) OR (huong dan)) phan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chieu sach)) - canh tran van nhung ((cong dan) or (huong dan)) phan cau*.