Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tong cong » trong cong, cong cong, dang cong
dung cong » dung trong
van manh » van minh, van anh, van hanh
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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 - ((van manh) or (canh tranh)) va ((tong cong) or (dung cong)) san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((van manh) OR (canh tranh)) va ((tong cong) OR (dung cong)) san than cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((van manh) or (canh tranh)) va ((tong cong) or (dung cong)) san than cau*.