Perhaps you should try some spelling variations:
cham duc » pham duc, pham duy, phan duc
vuc nang » cuc nang, vu nang, chuc nang
te sach » toc sach
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van 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 ((v nang) OR (vuc nang)) xa hoi. hieu ve ((cham duc) OR (cham soc)) va danh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((v nang) or (vuc nang)) xa hoi. hieu ve ((cham duc) OR (cham soc)) va danh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vuc nang)) xa hoi. hieu ve ((cham duc) OR (cham soc)) va danh vi cua tre*.