Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
van cam » van nam, van lam, van cau
xuc van » duc van, luc van, vuc van
v nang » va nang, vu nang, van nang
anh vi » hanh vi, anh va, anh vu
anh ve » hanh ve, anh va, anh viet

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