Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
vu sach » su sach, vu khach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cam » van lam, van cau, van dam
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) OR (vu bach)) ky lang xa hoi. hieu ((van cam) or (van nam)) xuc va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) ky lang xa hoi. hieu ((van cam) OR (van nam)) xuc va thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu bach)) ky lang xa hoi. hieu ((van cam) or (van nam)) xuc va thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu bach)) ky lang xa hoi. hieu ((van cam) or (van nam)) xuc va thanh vi cua tre*.