Perhaps you should try some spelling variations:
doanh hanh » doanh thanh, doanh anh, doanh doanh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
ho chieu » theo chieu, doi chieu, mot chieu
theo chu » theo chieu, cho chu, chao chu
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban
vi dung » va dung, vi ung, vi dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((ho chieu) OR (hoc thieu))) or (theo chu)) xanh - doanh hanh vi dung cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (hoc thieu))) OR (theo chu)) xanh - doanh hanh vi dung cong san toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chieu) OR (hoc thieu))) or (theo chu)) xanh - doanh hanh vi dung cong san toan ban*".