Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
quang dung » quang trung, ung dung, cuong dung
hoc thieu » toc thieu, hoc hien
san quang » van quang, dan quang, san quan
cong san » cong tac
cac than » cac thanh, cac nhan, cac phan
than cap » khan cap, thanh lap, thanh cac

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 - cong san quang dung trong cac than cap~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - cong san quang dung trong cac than cap*.