Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh luong » thanh huong, thanh cuong, thanh duong
hang luong » nang luong, hang thuong, hoang vuong
hoc thieu » toc thieu, hoc hien
quan dung » quang dung, quan duong, qua dung
manh toan » thanh toan, anh tuan, tinh toan
van tan » van tuan, van ban, van tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh luong) OR (hang luong)) quan dung trong ((manh toan) OR (van tan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh luong) OR (hang luong)) quan dung trong ((manh toan) or (van tan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh luong) OR (hang luong)) quan dung trong ((manh toan) or (van tan)) cau*.