Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
vu sach » vu bach, vu khach
va chai » va chat, va cham, va chi
cua tre » cua te, cuu tre, cua triet
su sach » so sach
nang xa » nang x, lang xa, nang ma
va cai » va cac, va bai, va dai
y nang » ky nang, ly nang, v nang
cuc va » chuc va, duc va, cuu 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 (su sach)) y nang xa hoi. lieu ((va chai) OR (va cai)) cuc va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) y nang xa hoi. lieu ((va chai) OR (va cai)) cuc va thanh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (su sach)) y nang xa hoi. lieu ((va chai) OR (va cai)) cuc va thanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (su sach)) y nang xa hoi. lieu ((va chai) OR (va cai)) cuc va thanh vi cua tre*.