Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
thang long » thanh cong
hoc thieu » toc thieu, hoc hien
dang cong » dung cong
lang than » lang thang, lang thanh, sang than
trinh he » trinh han, trinh hoa, trinh thi
than cao » toan cao, thai cao, than cap

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 - hanh trinh he ((dang cong) or (thang long)) lang than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh he ((dang cong) OR (thang long)) lang than cao*.