Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ke » hieu kem, chieu ke, hieu ky
va dinh » van dinh, va kinh, va tinh
cua tre » cuu tre, cua triet, dua tren
ke che » ke he
che xa » che va, cho xa, he xa
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: su sach ky nang xa hoi. hieu ke che xa ((va dinh) or (van dich)) va ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ke che xa ((va dinh) OR (van dich)) va ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ke che xa ((va dinh) or (van dich)) va ((cua tre) or (cua te))*.