Perhaps you should try some spelling variations:
tang luan » dung luan
hang cong » dang cong, thanh cong, thong cong
bang cong » dang cong, bang song, dung cong
hang nong » thang long, han tong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
anh tang » anh bang, anh dang, anh nang
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - anh tang luan ((((hang cong) OR (bang cong))) or (hang nong)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - anh tang luan ((((hang cong) OR (bang cong))) OR (hang nong)) tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - anh tang luan ((((hang cong) OR (bang cong))) or (hang nong)) tinh toan ban*".