Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, hanh mang, hanh tung
dung cong » dung trong
chu xanh » chu manh, chieu xanh, chua xang
anh tang » anh bang, anh dang, anh nang
lan dung » van dung, dan dung, lan hung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: theo ((chu xanh) or (chieu sach)) - ((hanh tang) or (anh tang)) lan dung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chieu sach)) - ((hanh tang) OR (anh tang)) lan dung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chieu sach)) - ((hanh tang) or (anh tang)) lan dung cong dan toan cau*.