Perhaps you should try some spelling variations:
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va tinh » may tinh
cau tre » cau tren, cau treo, cau tra
va cho » van cho, va co, va che
cho xu » chao xu, choi xu, cho xa
va cau » van cau, va cac, va dau

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 ty nang xa hoi. hieu va cho xu ((va tinh) or (van dich)) va cau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang xa hoi. hieu va cho xu ((va tinh) OR (van dich)) va cau tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. hieu va cho xu ((va tinh) or (van dich)) va cau tre*.