Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh, thien danh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trong » hanh trang, anh trong, hinh trong
dung quang » dang quang, dung quan, luong quang
quang toan » quang tuan, quang tran, quang doan
trong qua » trong quan, thong qua, trong nha
dung dung » ung dung, dung ung, dung dong
qua dung » quang dung, su dung, qua song
toan cao » toan ban, toan tap

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) OR (chieu xanh)) - hanh trong qua dung dung quang toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (chieu xanh)) - hanh trong qua dung dung quang toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (chieu xanh)) - hanh trong qua dung dung quang toan cao*.