Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
xa khanh » xa thanh, van khanh, dat khanh
khanh vi » hanh vi, khanh v, nhanh vi
tu sach » su sach, te sach, tu cach
cao duc » dao duc, cao suc, giao duc
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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) OR (thu sach)) ky nang x hoi. hieu qua ((cam xuc) or (cao duc)) xa khanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang x hoi. hieu qua ((cam xuc) OR (cao duc)) xa khanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ky nang x hoi. hieu qua ((cam xuc) or (cao duc)) xa khanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) ky nang x hoi. hieu qua ((cam xuc) or (cao duc)) xa khanh vi cua triet*.