Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hanh vai » hanh vi, hanh va, hanh tai
ban hanh » ban hang
lang van » dang van, tang van, hoang van
duy ban » uy ban, duy van, duy can
ve pham » v pham, ve phan, ve phat
tu dang » thu dang, tu dong, su dang
dang ky » dang y, dan ky, dong ky
lang xa » lang ha, dang xay
vai ve » va ve, dai ve, vai va

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 ky ((lang xa) or (lang van)) hoi. hieu ((ve pham) OR (vi pham)) duy ban hanh vai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dang ky ((lang xa) OR (lang van)) hoi. hieu ((ve pham) OR (vi pham)) duy ban hanh vai ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dang ky ((lang xa) or (lang van)) hoi. hieu ((ve pham) OR (vi pham)) duy ban hanh vai ve triet".
• Adding a wildcard symbol may retrieve word variants: tu dang ky ((lang xa) or (lang van)) hoi. hieu ((ve pham) OR (vi pham)) duy ban hanh vai ve triet*.