Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
quang dung » quang trung, ung dung, cuong dung
hoc thieu » toc thieu, hoc hien
quan dong » quang dong, quan long, quan hoang
cong van » cong vang, cong san, song van
toan cao » toan tap
toan ban » van ban

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 ((quan dong) or (quang dung)) cong van ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh ((quan dong) OR (quang dung)) cong van ((toan cao) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh ((quan dong) or (quang dung)) cong van ((toan cao) OR (toan ban))*".