Perhaps you should try some spelling variations:
duong thanh » dong thanh, muong thanh, luong thanh
thong duong » tuong duong, thong dung, thong huong
thieu xanh » chieu xanh, hieu manh, thien danh
thanh toan » thanh hoa, thanh san, tinh toan
thien anh » thien danh, tien anh, thien thanh
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
tang cua » mang cua, hang cua, tang luan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) OR (thien anh)) - hanh tang cua thong duong thanh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - hanh tang cua thong duong thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - hanh tang cua thong duong thanh toan ban*.