Perhaps you should try some spelling variations:
tinh sach » tinh cach, tinh mach, sinh sach
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va tinh » may tinh
sach va » sach xa, sach ha, sach dao
cuu tre » cua tre, cau tren, cau treo
va anh » van anh, va danh, va hanh
anh vi » hanh vi, anh va, anh ve
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. lieu va tinh sach va anh vi ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. lieu va tinh sach va anh vi ((cuu tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. lieu va tinh sach va anh vi ((cuu tre) or (cua te))*.