Perhaps you should try some spelling variations:
thanh huong » thanh hung, thanh cong, anh huong
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
huong va » thuong va, luong va, duong va
cong san » cong tac
toan tap » toan ban
va hang » van hang, va nang, va lang

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

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