Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
tranh quan » tranh quang, trinh quan, tranh luan
thien anh » thien danh, tien anh, thien thanh
nhung don » nhung van, nhung bo
dung cong » dung trong
van toan » van tuan, van tan, van thanh
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: toc ((thieu xanh) OR (thien anh)) - canh tranh quan ((nhung don) or (dung cong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (thien anh)) - canh tranh quan ((nhung don) OR (dung cong)) van toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) OR (thien anh)) - canh tranh quan ((nhung don) or (dung cong)) van toan cao".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu xanh) OR (thien anh)) - canh tranh quan ((nhung don) or (dung cong)) van toan cao*.