Perhaps you should try some spelling variations:
va huong » va thuong, va phuong, va tuong
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
doi cua » hoi cua
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky nang xa hoi. hieu va cam tuc va huong ((doi cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu va cam tuc va huong ((doi cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu va cam tuc va huong ((doi cua) or (dai cua)) tre*.