Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
ve triet » va trien, su triet
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
ve ve » de ve, va ve, ke ve

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 y nang xa hoi. hieu ((ve cham) or (ve cac)) xuc ((va hanh) or (ban thanh)) ve ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ((ve cham) OR (ve cac)) xuc ((va hanh) OR (ban thanh)) ve ve triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ((ve cham) or (ve cac)) xuc ((va hanh) or (ban thanh)) ve ve triet*.