Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
van thanh » ban thanh, van tuan
cap dung » cao dung, chan dung, cach dung
dan toan » van toan, dan than, manh toan
ap dung » xay dung, van dung

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