Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van nhan » van phan, danh nhan, van khanh
te sach » toc sach
cao hoc » co hoc, cho hoc, chat hoc
van anh » tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
anh va » hanh va
va cua » va chua, via cua, ca cua

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 cao hoc. hieu ((van nhan) OR (van thanh)) cuu van anh va cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang cao hoc. hieu ((van nhan) OR (van thanh)) cuu van anh va cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach y nang cao hoc. hieu ((van nhan) OR (van thanh)) cuu van anh va cua tre*.