Perhaps you should try some spelling variations:
bach dang » bach dan, bach khang, cach mang
su triet » su viet, su tien, ve triet
ban hanh » ban hang
hanh va » hang va, hanh vi
xuc ban » duc ban, cuc ban, quoc ban
ve cham » va cham, ve chat, vu cham
tu bach » vu bach, tu cach, tu bac
dong ha » dong hoa, dong va, dong hoc
lang ha » long ha
ve cac » va cac, vien cac

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 dang ((lang ha) or (dong ha)) hoi. hieu ((ve cac) or (ve cham)) xuc ban hanh va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu bach dang ((lang ha) OR (dong ha)) hoi. hieu ((ve cac) OR (ve cham)) xuc ban hanh va su triet.
• Adding a wildcard symbol may retrieve word variants: tu bach dang ((lang ha) or (dong ha)) hoi. hieu ((ve cac) or (ve cham)) xuc ban hanh va su triet*.