Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
ty nang » ty xang, ty hang, ly nang
hieu va » lieu va, hieu qua
va cham » va chat, va tham
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
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 ((ty nang) OR (ky nang)) xa hoi. hieu va cham ((xuc va) or (tuc va)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ty nang) OR (ky nang)) xa hoi. hieu va cham ((xuc va) OR (tuc va)) hanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ((ty nang) OR (ky nang)) xa hoi. hieu va cham ((xuc va) or (tuc va)) hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: vu sach ((ty nang) OR (ky nang)) xa hoi. hieu va cham ((xuc va) or (tuc va)) hanh vi cua tre*.