Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, chau tinh, kieu tinh
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
tranh va » tranh van, trang va, trinh va
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: ho ((chieu sach) or (((chieu tinh) or (lieu tinh)))) - canh tranh va nhung cong dan chan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (((chieu tinh) OR (lieu tinh)))) - canh tranh va nhung cong dan chan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (((chieu tinh) or (lieu tinh)))) - canh tranh va nhung cong dan chan cau*.