Perhaps you should try some spelling variations:
vu sach » vu bach, su sach, vu khach
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
va cua » va chua, via cua, ca 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 (te sach)) ky nang xa hoi. hieu va cam xuc va hanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (te sach)) ky nang xa hoi. hieu va cam xuc va hanh va cua tre.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (te sach)) ky nang xa hoi. hieu va cam xuc va hanh va cua tre*.