Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
thanh em » thanh liem, thanh nam, thanh tam
te sach » toc sach
ly nang » ky nang, ly hang, ly quang
ly vang » ly hang, ly van, ly quang
van huu » van huy, van hau, san huu
huu duc » cuu duoc, huu dung
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, v nang, may nang
em cua » diem 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) or (((ly nang) OR (ly vang)))) xa hoi. hieu van huu duc va thanh em cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (((ly nang) OR (ly vang)))) xa hoi. hieu van huu duc va thanh em cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (((ly nang) OR (ly vang)))) xa hoi. hieu van huu duc va thanh em cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (((ly nang) OR (ly vang)))) xa hoi. hieu van huu duc va thanh em cua tre*.