Perhaps you should try some spelling variations:
thanh sinh » thanh binh, thanh tinh, thanh vinh
hieu van » hieu va, thien van, lieu va
sinh cuu » dinh cuu, sinh cua, sinh cau
te sach » toc sach
van lam » van nam
truc va » thuc va, thuc vat, trung va
cuu tre » cua tre, cau tren, cau treo
y nang » ky nang, ly nang, v nang
nang o » nang co, nang ho, nang ro
tuc va » thuc va, tuc xa, duc va
o hoi » co hoi, o hoc, o hai

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 o hoi. hieu van lam ((tuc va) or (truc va)) thanh sinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang o hoi. hieu van lam ((tuc va) OR (truc va)) thanh sinh cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach y nang o hoi. hieu van lam ((tuc va) or (truc va)) thanh sinh cuu tre*.