Perhaps you should try some spelling variations:
thanh nhung » hanh nhung, tranh nhung, thanh chuong
hanh trung » thanh trung, hanh trang, manh trung
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh hung » thanh huong, thanh tung, thanh trung
hieu lang » chieu sang, hieu quang, nhieu tang
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: hoc ((chieu xanh) or (hieu lang)) - hanh trung ((thanh nhung) OR (thanh hung)) cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (hieu lang)) - hanh trung ((thanh nhung) OR (thanh hung)) cong dan toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (hieu lang)) - hanh trung ((thanh nhung) OR (thanh hung)) cong dan toan cau*".