Perhaps you should try some spelling variations:
hanh kien » danh kien, anh kien, thanh vien
su triet » su viet, su tien, ve triet
sach vu » sach va, sach tu, sach uu
hanh ki » hanh vi, hanh ky, thanh kim
xuc van » duc van, luc van, vuc van
te sach » toc sach
hieu va » lieu va, hieu qua
vu nang » vuc nang, va nang, vu dang
ma hoi » mai hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach vu nang ((ma hoi) OR (xa hoi)). hieu va cam xuc van ((hanh ki) or (hanh kien)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach vu nang ((ma hoi) OR (xa hoi)). hieu va cam xuc van ((hanh ki) OR (hanh kien)) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach vu nang ((ma hoi) OR (xa hoi)). hieu va cam xuc van ((hanh ki) or (hanh kien)) su triet".
• Adding a wildcard symbol may retrieve word variants: te sach vu nang ((ma hoi) OR (xa hoi)). hieu va cam xuc van ((hanh ki) or (hanh kien)) su triet*.