Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cham xuc » cam xuc, chat xuc, cham soc
hanh ky » hanh kem
hanh ki » hanh vi, hanh kien, thanh kim
xuc van » duc van, luc van, vuc van
va cham » va chat, va tham
tu sach » thu sach, su sach, te sach
sach vu » sach va, sach tu, sach uu
mai hoi » mai khoi, dai hoi, lai hoi
vu dang » su dang, vu quang, cua dang
hieu va » lieu va, hieu qua
ma hoi » xa hoi, ma hoa, me hoi

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 vu dang ((ma hoi) or (mai hoi)). hieu va cham xuc van ((hanh ki) OR (hanh ky)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach vu dang ((ma hoi) OR (mai hoi)). hieu va cham xuc van ((hanh ki) OR (hanh ky)) su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach vu dang ((ma hoi) or (mai hoi)). hieu va cham xuc van ((hanh ki) OR (hanh ky)) su triet*".