Perhaps you should try some spelling variations:
nhung doanh » nhung danh, nhung don, nhuan doanh
dung doanh » dung dan, dung dong
hien tinh » khien tinh, thien tinh, dien tinh
bien tinh » bi tinh, yen tinh, diep tinh
thong san » thong sang, trong san, thong van
ha thong » hoa thong, nha thong, he thong
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien tinh) or (bien tinh)) - ((nhung doanh) OR (dung doanh)) ha thong thong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien tinh) OR (bien tinh)) - ((nhung doanh) OR (dung doanh)) ha thong thong san toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien tinh) or (bien tinh)) - ((nhung doanh) OR (dung doanh)) ha thong thong san toan cao*".