Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh huong, thanh cuong
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
quan duong » quan dong, qua duong, quan vuong
tuan duong » tuyen duong, tuong duong, van duong
hoc thieu » toc thieu, hoc hien
cong san » cong tac
san van » tan van, luan van, tran 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 tuong) or (thanh tung)) ((quan duong) OR (tuan duong)) cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh tuong) OR (thanh tung)) ((quan duong) OR (tuan duong)) cong san van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((thanh tuong) or (thanh tung)) ((quan duong) OR (tuan duong)) cong san van ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh tuong) or (thanh tung)) ((quan duong) OR (tuan duong)) cong san van ban*.