Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
vien cac » vien bach, vien dai, vien da
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
dai cuu » dai cua, dai huu
cuu tre » cua tre, cau tren, cau treo
lai roi » loi roi
lai hoi » dai hoi, lai hoa, mai hoi
y nang » ky nang, ly nang, v nang
ve cac » va cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((lai hoi) or (lai roi)). hieu ((ve cac) OR (vien cac)) duc va thanh dai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((lai hoi) OR (lai roi)). hieu ((ve cac) OR (vien cac)) duc va thanh dai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((lai hoi) or (lai roi)). hieu ((ve cac) OR (vien cac)) duc va thanh dai cuu tre*".