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
thanh cac » hanh cac, thanh bac, tranh cac
trong ca » trong cac, trong nha
thanh ca » thanh cha, thanh ha, thanh va

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 ca ((thanh 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 ca ((thanh cac) OR (thanh ca)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh trinh) or (canh tranh)) quang dung trong ca ((thanh cac) or (thanh ca))*.