Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh tran » canh tranh, hanh trang, banh trang
hung cong » nhung cong, hung cuong, phung cong
tran van » luan van
van hung » van dung, manh hung, van duong
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than man » than ma, thanh san, tran manh

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu xanh) or (hieu manh)) - canh tran van hung cong van than man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (hieu manh)) - canh tran van hung cong van than man*.