Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
bang cong » dang cong, bang song, hang cong
dan toan » dan than, manh toan, xuan toan
van toan » van tuan, van tan, van thanh
tung va » trung va, tuong va, dung va

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