Perhaps you should try some spelling variations:
tinh tap » tinh tai, tinh tay, tinh toan
toc sach » hoc sach, doc sach, thuoc sach
cua viet » ca viet, hoa viet, cua vat
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, dan cac
van bac » van ban, van bao, van hac
va tinh » may tinh
tap cua » tap quan, tiep cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang xa hoi. thi ((van cac) OR (van bac)) duc va tinh tap cua viet~.
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang xa hoi. thi ((van cac) or (van bac)) duc va tinh tap cua viet*.