Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh dong » ha dong
cua nhung » va nhung
cuong tap » luong tap, cong tac, luong tai
anh dong » anh huong, anh son
cong tap » cong tac, cong tan, tong tap
toan ban » van ban

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 tieu xanh - ((hanh dong) OR (anh dong)) cua nhung ((cong tap) OR (cuong tap)) toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh dong) OR (anh dong)) cua nhung ((cong tap) or (cuong tap)) toan ban~".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh dong) OR (anh dong)) cua nhung ((cong tap) or (cuong tap)) toan ban*.