Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat tuc » chat xuc, luat tuc, chat huu
te sach » toc sach
nang xa » nang x, lang xa, nang ma
doan vi » doan va, doan thi, doan van
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa
dan vi » dan va, gan vi, dan ve

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 xa hoi. hieu van chat tuc va ((dan vi) or (((doan vi) or (don vi)))) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu van chat tuc va ((dan vi) OR (((doan vi) OR (don vi)))) cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu van chat tuc va ((dan vi) or (((doan vi) or (don vi)))) cua tre*.