Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dang cong » dung cong
dan toan » van toan, dan than, manh toan
dan chan » dan gian, dan ca, van chat

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 cua ((nhung cong) or (dang cong)) ((dan toan) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh cua ((nhung cong) OR (dang cong)) ((dan toan) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh cua ((nhung cong) or (dang cong)) ((dan toan) or (dan chan)) cau*.