Perhaps you should try some spelling variations:
su triet » su tien, ve triet
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, tu cach
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
te sach » toc sach
nang xa » nang x, lang xa, nang ma
su viet » so viet
ve cam » ve cham, ve cac, va cam
v nang » va nang, vu nang, van nang

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) OR (te sach)) v nang xa hoi. hieu ve cam xuc van hanh vi ((su triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) v nang xa hoi. hieu ve cam xuc van hanh vi ((su triet) OR (su viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) v nang xa hoi. hieu ve cam xuc van hanh vi ((su triet) or (su viet))*".