Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
cham xuc » cam xuc, chat xuc, pham duc
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
ky sang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
ma hoi » mai hoi, ma hoa, me hoi
vi cua » vai cua, di cua

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