Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thong cong » trong cong, thong thong, phong chong
hoc thieu » toc thieu, hoc hien
thanh tra » thanh toan, thanh hoa
tong cong » trong cong, cong cong, dung cong
dan toan » van toan, dan than, manh toan
tra van » tran van, ta van, trang 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 tra van ((thong cong) OR (tong cong)) ((dan toan) or (tinh toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tra van ((thong cong) OR (tong cong)) ((dan toan) OR (tinh toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tra van ((thong cong) OR (tong cong)) ((dan toan) or (tinh toan)) cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tra van ((thong cong) OR (tong cong)) ((dan toan) or (tinh toan)) cao*.