Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ve triet » va trien, su triet
su sach » so sach, vu 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
cac toc » cac toi, cac nuoc, cac thoi
toc van » hoc van, toc san, tac van
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang xa hoi. ((thieu nien) OR (thien nhien)) cac toc van hanh vi ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang xa hoi. ((thieu nien) OR (thien nhien)) cac toc van hanh vi ve triet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang xa hoi. ((thieu nien) OR (thien nhien)) cac toc van hanh vi ve triet*.