Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
te sach » toc sach
ve cham » va cham, ve chat, vu cham
van cua » vang cua, ban cua, dan cua
tuc gia » tac gia, duc gia, toc gia
cua tre » cua te, cuu tre, cua triet
co sach » bo sach, cuon sach, hoc sach
nang o » nang co, nang ho, nang ro
ve cam » ve cac, va cam, ve cai
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) or (co sach)) ky nang o hoi. hieu ((ve cam) or (ve cham)) tuc gia thanh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (co sach)) ky nang o hoi. hieu ((ve cam) OR (ve cham)) tuc gia thanh van cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (co sach)) ky nang o hoi. hieu ((ve cam) or (ve cham)) tuc gia thanh van cua tre*.