Perhaps you should try some spelling variations:
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
sach vu » sach va, sach tu, sach uu
vu nang » vuc nang, va nang, vu dang
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
hanh ki » hanh ky, hanh kien, thanh kim
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: tu sach vu nang ma hoa. hieu va cam xuc van ((hanh ki) or (hanh vi)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach vu nang ma hoa. hieu va cam xuc van ((hanh ki) OR (hanh vi)) ve triet*.