Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, anh tang, hanh mang
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap
tang va » trang va, tang van, thang va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chieu xanh) or (chieu sang)) - hanh tang va nhung cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chieu xanh) OR (chieu sang)) - hanh tang va nhung cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: cho ((chieu xanh) or (chieu sang)) - hanh tang va nhung cong dan than cao*.