Perhaps you should try some spelling variations:
ban hanh » ban hang
hieu te » hieu ve, hien te, hieu he
cu tren » tu tren, dua tren
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
te ban » te bao
ban bo » can bo, ban do, ban co
bo ban » co ban, lo ban, do ban
x hoi » xa hoi, o hoi, x ho
vi cu » vi su, vi xu, vi du

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang x hoi. hieu te ban bo ban hanh vi cu tren~.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x hoi. hieu te ban bo ban hanh vi cu tren*.