Perhaps you should try some spelling variations:
thang long » thanh cong
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh toan » thanh hoa, thanh san, tinh toan
hien xanh » hien hanh, hien nhanh, hien khanh
hanh tran » hanh trang, thanh tran, hanh tram
van thang » van khang, van hang, van than
van thanh » ban thanh, van tuan
tran van » luan van

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) OR (chieu xanh)) - hanh tran van thang long ((thanh toan) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (chieu xanh)) - hanh tran van thang long ((thanh toan) OR (van thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) OR (chieu xanh)) - hanh tran van thang long ((thanh toan) or (van thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) OR (chieu xanh)) - hanh tran van thang long ((thanh toan) or (van thanh)) cau*.