Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
thong song » thong cong, thong hong, thong sang
thong dong » thong duong, thuong dong, thong cong
thien anh » thien danh, tien anh, thien thanh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
van tuan » van quan, van ban, anh tuan
tuan tap » toan tap, tuan tai, tuyen 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 ((thieu xanh) or (thien anh)) - hanh tang cua ((thong song) OR (thong dong)) van tuan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - hanh tang cua ((thong song) OR (thong dong)) van tuan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (thien anh)) - hanh tang cua ((thong song) OR (thong dong)) van tuan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (thien anh)) - hanh tang cua ((thong song) OR (thong dong)) van tuan tap*.