Perhaps you should try some spelling variations:
vien cac » vien bach, vien dai, vien da
hanh vai » hanh vi, hanh va, hanh tai
co sach » bo sach, cuon sach, hoc sach
sach ty » sach y, sach tu, sach thu
vai cuu » vai cua
va hanh » van hanh, va thanh, va danh
ve cham » va cham, ve chat, vu cham
ty sang » ty xang, ty hang, duy sang
cuu tre » cua tre, cau tren, cau treo
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: co sach ty sang ((ma hoi) or (xa hoi)). hieu ((ve cham) or (vien cac)) xuc va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ty sang ((ma hoi) OR (xa hoi)). hieu ((ve cham) OR (vien cac)) xuc va hanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: co sach ty sang ((ma hoi) or (xa hoi)). hieu ((ve cham) or (vien cac)) xuc va hanh vai cuu tre*.