Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh toan » thanh hoa, thanh san, tinh toan
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
toan thanh » tran thanh, hoan thanh, toan thang
hoc thieu » toc thieu, hoc hien
tan thanh » tran thanh, tang thanh, ban thanh
toan van » tran van, toan ban, tan van

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 toan van ((nhung cong) OR (thong cong)) ((tan thanh) OR (toan thanh)) lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh toan van ((nhung cong) or (thong cong)) ((tan thanh) OR (toan thanh)) lap~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh toan van ((nhung cong) or (thong cong)) ((tan thanh) OR (toan thanh)) lap*.