Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhieu tang » chieu sang, hieu lang, nhiet nang
hanh tranh » canh tranh, hanh trinh, hanh trang
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong dan » cong san, cong tan, huong dan
dan han » dan chan, dan than, dan hanh
han tap » han tai, toan tap, nhan tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (nhieu tang)) - hanh tranh ((cua dung) OR (cua dang)) cong dan han tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (nhieu tang)) - hanh tranh ((cua dung) OR (cua dang)) cong dan han tap~".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (nhieu tang)) - hanh tranh ((cua dung) OR (cua dang)) cong dan han tap*.