Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
tuong va » truong va, thuong va, luong va
toan cao » toan tap
toan ban » van ban

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tuong va ((nhung cong) OR (thong cong)) dan ((toan cao) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tuong va ((nhung cong) OR (thong cong)) dan ((toan cao) or (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tuong va ((nhung cong) OR (thong cong)) dan ((toan cao) or (toan ban))*.