Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
ban hanh » ban hang
te sach » toc sach
nang xa » nang x, lang xa, nang ma
van hau » van ha, van hai, van dau
hau duc » huu duc, ha duc, pham duc
duc ban » duc tan, duc van, dua ban
hanh de » hanh ve, hanh kem
cua tre » cua te, cuu tre, cua triet
ca tren » cau tren, cu tren, la tren
y nang » ky nang, ly nang, v nang

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 hau duc ban hanh de ((cua tre) or (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang xa hoi. hieu van hau duc ban hanh de ((cua tre) OR (ca tren)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang xa hoi. hieu van hau duc ban hanh de ((cua tre) or (ca tren))*.