Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
hoc trong » hoc thuong, hoc tieng, dot trong
tan khang » van khang, tao khang, tinh khang
khang dau » hang dau, phan dau, xang dau
tung hoc » trung hoc, tuong hoc, dung hoc
cong tan » cong tac, cong san, cong thanh

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 - thanh tung hoc trong cong tan khang dau~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tung hoc trong cong tan khang dau*.