Perhaps you should try some spelling variations:
lanh tranh » canh tranh, lan tranh, hanh trinh
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
lanh manh » lan anh, van manh, anh anh
dung cong » dung trong
dan chan » dan gian, van chat
va dung » van dung, va duong, vat dung

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 - ((lanh manh) or (lanh tranh)) va dung cong ((dan chan) OR (dan ca)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((lanh manh) OR (lanh tranh)) va dung cong ((dan chan) OR (dan ca)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((lanh manh) or (lanh tranh)) va dung cong ((dan chan) OR (dan ca)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((lanh manh) or (lanh tranh)) va dung cong ((dan chan) OR (dan ca)) cau*.