Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
thien anh » thien danh, thien thanh, thien chanh
tien anh » tieng anh, tien manh, dien anh
trang va » tran van, hang va
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan 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) OR (tien anh)))) - hanh trang va nhung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (((thien anh) OR (tien anh)))) - hanh trang va nhung cong san toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (((thien anh) OR (tien anh)))) - hanh trang va nhung cong san toan cao*".