Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trang » canh tranh, hanh trinh, minh trang
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
hach toan » thanh toan
manh toan » thanh toan, anh tuan, tinh toan
qua dung » quang dung, su dung, qua song

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 trang) OR (thanh trung)) qua dung cong ((hach toan) OR (manh toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh trang) or (thanh trung)) qua dung cong ((hach toan) OR (manh toan)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trang) or (thanh trung)) qua dung cong ((hach toan) OR (manh toan)) cau*.