Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van doanh » toan doanh, van dong, van anh
cham tuc » nham thuc, pham thuc, tham thuc
va doanh » vay doanh, va danh, hoa doanh
tu sach » thu sach, su sach, te 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 ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cuc tre » duc tre, cua tre, cuu tre

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang xa hoi. hieu ve cham tuc ((va doanh) or (((van doanh) or (van thanh)))) tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ve cham tuc ((va doanh) OR (((van doanh) OR (van thanh)))) tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ve cham tuc ((va doanh) or (((van doanh) or (van thanh)))) tai cuc tre*.