Perhaps you should try some spelling variations:
thang long » thanh cong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dang cong » dung cong
lang khan » lang kham, lang thang, dang khanh
tranh he » trinh he, tranh ha, tinh he
khan cap » khan ap, than cap, khoan cam

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