Perhaps you should try some spelling variations:
ve triet » va trien
bach van » bach dan, cach van, bach dang
su triet » su viet, su tien
ban hanh » ban hang
duc ban » duc tan, duc van, dua ban
cam duc » cam xuc, cao duc, pham duc
tu bach » vu bach, tu cach, tu bac
hieu ve » hieu va, hieu van
long ha » dong ha, cong ha, dong hoa
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu bach van ((lang ha) or (long ha)) hoi. hieu ve cam duc ban hanh vi ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bach van ((lang ha) OR (long ha)) hoi. hieu ve cam duc ban hanh vi ((su triet) OR (ve triet)).
• Adding a wildcard symbol may retrieve word variants: tu bach van ((lang ha) or (long ha)) hoi. hieu ve cam duc ban hanh vi ((su triet) or (ve triet))*.