Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
hieu van » hieu va, thien van, lieu va
thanh le » thinh le, thanh ve, thanh de
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
cam duc » cam xuc, cao duc, nam duoc
nang xa » nang x, lang xa, nang ma

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 ((cam duc) OR (pham duc)) van ((thanh le) or (thanh vien)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu van ((cam duc) OR (pham duc)) van ((thanh le) OR (thanh vien)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu van ((cam duc) OR (pham duc)) van ((thanh le) or (thanh vien)) cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van ((cam duc) OR (pham duc)) van ((thanh le) or (thanh vien)) cua tre*.