Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
thanh hoi » thanh hoai, thanh hoa, thanh hai
va thanh » gia thanh, ban thanh, va tinh
hoi cua » hoi chuc
cua tre » cua te, cuu tre, cua triet
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
ve cac » va cac, vien cac
va dau » va dao
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 ((y nang) OR (ly nang)) x hoi. hieu ((va dau) or (ve cac)) duc va thanh hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ((y nang) OR (ly nang)) x hoi. hieu ((va dau) OR (ve cac)) duc va thanh hoi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ((y nang) OR (ly nang)) x hoi. hieu ((va dau) or (ve cac)) duc va thanh hoi cua tre*".