Perhaps you should try some spelling variations:
ve triet » va trien
su triet » su viet, su tien
ban hanh » ban hang
hanh ki » hanh vi, hanh ky, hanh kien
xuc ban » duc ban, cuc ban, quoc ban
sach vu » sach va, sach tu, sach xu
nang ma » tang ma, sang ma, nang cao
sach uu » sach luu, sach tu, sach xu
hieu va » lieu va, hieu qua
ma hoi » mai hoi, xa hoi, ma hoa
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) OR (sach uu)) nang ma hoi. hieu va cam xuc ban hanh ki ((su triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach vu) OR (sach uu)) nang ma hoi. hieu va cam xuc ban hanh ki ((su triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach vu) OR (sach uu)) nang ma hoi. hieu va cam xuc ban hanh ki ((su triet) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach vu) OR (sach uu)) nang ma hoi. hieu va cam xuc ban hanh ki ((su triet) or (ve triet))*.