Perhaps you should try some spelling variations:
thang long » thanh cong
canh trinh » canh tranh, hanh trinh, anh trinh
hien xanh » hien hanh, hien nhanh, chieu xanh
canh tinh » hanh tinh, manh tinh, canh tranh
va thang » van thang, va thanh, va thong
dan chan » dan gian, dan ca
van chat » cao chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - ((canh trinh) or (canh tinh)) va thang long ((dan chan) OR (van chat)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((canh trinh) OR (canh tinh)) va thang long ((dan chan) OR (van chat)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((canh trinh) or (canh tinh)) va thang long ((dan chan) OR (van chat)) cau*".