Perhaps you should try some spelling variations:
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
hoc van » hoc dan, hoc va, hoc vat
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
oc van » luoc van, quoc van
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang x hoi. hieu vu cham ((oc van) OR (hoc van)) anh vi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang x hoi. hieu vu cham ((oc van) OR (hoc van)) anh vi cua te*".