Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
su triet » su viet, ve triet
ban hanh » ban hang
lang van » dang van, tang van, hoang van
cham duc » pham duc, cham soc, pham duy
duc ban » duc tan, duc van, dua ban
tu dang » thu dang, tu dong, su dang
lang xa » lang ha, dang xay
su tien » su kien, su hien, tu tieng
dang y » dang xay

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dang y ((lang xa) or (lang van)) hoi. hieu van cham duc ban hanh vi ((su triet) OR (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dang y ((lang xa) OR (lang van)) hoi. hieu van cham duc ban hanh vi ((su triet) OR (su tien))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dang y ((lang xa) or (lang van)) hoi. hieu van cham duc ban hanh vi ((su triet) OR (su tien))*".