Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
tuan duong » tuyen duong, tuong duong, van duong
hoc thieu » toc thieu, hoc hien
tuan dong » quan dong, luan dong, tran dong
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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 ((tuan dong) or (tuan duong)) cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tung ((tuan dong) OR (tuan duong)) cong tan van ban*.