Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
phung cong » nhung cong, phong cong, nhung chong
hoc thieu » toc thieu, hoc hien
doanh ban » doanh van, doanh nhan, doanh luan
doanh bat » danh bat, doanh tai, doanh va
cong manh » cong danh, duong manh, cong thanh
manh van » anh van, menh van, canh van

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: ((theo chieu) OR (hoc thieu)) xanh - canh ((doanh ban) OR (doanh bat)) phung cong manh van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (hoc thieu)) xanh - canh ((doanh ban) OR (doanh bat)) phung cong manh van ban~".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc thieu)) xanh - canh ((doanh ban) OR (doanh bat)) phung cong manh van ban*.