Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh vai » hanh vi, hanh tai, hanh van
sach ly » sach y, sach lo, sach ty
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly vang
va cau » van cau, va cac, va dau
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ly nang x hoi. hieu ((va cau) or (ve cac)) duc va ((hanh vai) OR (hanh va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ly nang x hoi. hieu ((va cau) OR (ve cac)) duc va ((hanh vai) OR (hanh va)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ly nang x hoi. hieu ((va cau) or (ve cac)) duc va ((hanh vai) OR (hanh va)) cua tre*".