Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
thanh tra » thanh toan, thanh hoa
hang cong » dang cong, thanh cong, thong cong
hang nong » thang long, han tong
bang cong » dang cong, bang song, dung cong
tra tuan » tran tuan, tra quan, tri tuan
san van » tan van, luan van, tran 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 tuan ((((hang cong) OR (hang nong))) or (bang cong)) san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tra tuan ((((hang cong) OR (hang nong))) OR (bang cong)) san van ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tra tuan ((((hang cong) OR (hang nong))) or (bang cong)) san van ban*".