Perhaps you should try some spelling variations:
thanh soc » thanh son, nhanh soc, thanh hoc
van thanh » ban thanh, van tuan
cua viet » ca viet, hoa viet, cua vat
van hanh » ban hanh, van anh, van ban
hieu van » hieu va, thien van, lieu va
nang dai » nang dau, nang tai, lang dai
soc van » hoc van, oc van, sac van
te sach » toc sach
su sach » so sach
vu sach » vu bach, vu khach
dai hai » dai han, dai hoi, dai tai
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua

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: ((te sach) OR (((vu sach) OR (su sach)))) y nang dai hai. hieu van thanh soc van hanh vi cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (((vu sach) OR (su sach)))) y nang dai hai. hieu van thanh soc van hanh vi cua viet~".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (((vu sach) OR (su sach)))) y nang dai hai. hieu van thanh soc van hanh vi cua viet*.