Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » hanh chinh
quang dung » quang trung, ung dung, cuong dung
hoc thieu » toc thieu, hoc hien
trong tan » trong quan, trong cac, trong ca
tranh cac » trinh cac, thanh cac, tranh cai
thanh ca » thanh cha, thanh cac, thanh ha

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 - ((hanh trinh) or (canh tranh)) quang dung trong tan ((tranh cac) or (thanh ca))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh trinh) OR (canh tranh)) quang dung trong tan ((tranh cac) OR (thanh ca)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trinh) or (canh tranh)) quang dung trong tan ((tranh cac) or (thanh ca))*.