Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va thanh » gia thanh, va tinh, le thanh
te sach » toc 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
van cac » van hac, van bac, dan cac
van cau » van dau, van hau, van chat
lap cua » lai cua, tap cua, lam cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. thi ((van cac) OR (van cau)) xuc ((va thanh) or (ban thanh)) lap cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. thi ((van cac) OR (van cau)) xuc ((va thanh) OR (ban thanh)) lap cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. thi ((van cac) OR (van cau)) xuc ((va thanh) or (ban thanh)) lap cua vat".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. thi ((van cac) OR (van cau)) xuc ((va thanh) or (ban thanh)) lap cua vat*.