Perhaps you should try some spelling variations:
te sach » toc sach
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cuu tre » cau tren, cau treo
nang xa » nang x, lang xa, nang ma
va cam » va cham, va cac, va cai
luc va » duc va, tuc va, loc va
va cao » va cac, va co, va dao

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