Perhaps you should try some spelling variations:
ve triet » va trien, su triet
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
van cam » van nam, van lam, van dam
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
van cau » van dau, van hau, van chat
vi ve » va ve, gi ve, ve ve

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: tu sach ty nang xa hoi. hieu ((van cam) OR (van cau)) xuc ((van hanh) OR (gia thanh)) vi ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang xa hoi. hieu ((van cam) OR (van cau)) xuc ((van hanh) or (gia thanh)) vi ve triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ((van cam) OR (van cau)) xuc ((van hanh) or (gia thanh)) vi ve triet*.