Perhaps you should try some spelling variations:
pham duy » pham duc
ban hanh » ban hang
sang ky » sang kyo, dang ky, tang ky
mai hoi » mai khoi, dai hoi, lai hoi
va pham » van pham, va phat, va phap
duy ban » uy ban, duy van, duy can
ma hoi » xa hoi, ma hoa, me hoi
vi cua » vai cua, di cua
cua te » cua tu

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: tu ((sang ky) OR (van ky)) nang ((ma hoi) OR (mai hoi)). lieu va pham duy ban hanh vi cua te~.
• Adding a wildcard symbol may retrieve word variants: tu ((sang ky) or (van ky)) nang ((ma hoi) or (mai hoi)). lieu va pham duy ban hanh vi cua te*.