Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac toc » cac toi, cac nuoc, cac thoi
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
ve cac » va cac, vien cac
toc va » hoc va, toc ta, tuc va
di cua » dai cua, doi cua, de cua

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 ve cac toc va danh ((vai cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu ve cac toc va danh ((vai cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu ve cac toc va danh ((vai cua) or (di cua)) tre*.