Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
dinh quang » tinh quang, minh quang, dinh duong
quang dang » quang dung, quang dong, quang hoang
hoc thieu » toc thieu, hoc hien
hanh dinh » thanh dinh, hinh dinh, hanh tinh
dang cong » dung cong
vang toan » van toan, dang toan, quang toan
van tan » van tuan, van ban, van tai

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 dinh quang dang cong ((vang toan) or (van tan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh dinh quang dang cong ((vang toan) OR (van tan)) ban*.