Perhaps you should try some spelling variations:
duong thanh » dong thanh, muong thanh, luong thanh
hanh truong » hanh trong, anh truong, manh truong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
truong cua » truong ca, truong quan, truong cao
dung duong » dung dong, dong duong, dung dung
cua dung » cua dang, cua dong, qua dung
san cau » van cau, ban cau, can cau

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 (chieu sang)) - hanh truong cua dung duong thanh san cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - hanh truong cua dung duong thanh san cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - hanh truong cua dung duong thanh san cau*.