Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van tham » van thanh, van tuan, van chat
tham soc » cham soc, tham nuoc, thai son
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hanh va » hang va, hanh vi
cuu tre » cua tre, cau tren, cau treo
soc va » hoc va, loc va, doc va

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 ky nang xa hoi. hieu van tham soc va ((thanh vi) or (hanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu van tham soc va ((thanh vi) OR (hanh va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van tham soc va ((thanh vi) or (hanh va)) cuu tre*.