Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
nang doc » nang luc
va triet » va thiet, va trien, ve triet
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
doc hoi » duoc hoi, hoc hoi, doc hai
va dung » van dung, va duong, vat dung
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va

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 (su sach)) ky nang doc hoi. lieu va cam xuc va dung tai ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky nang doc hoi. lieu va cam xuc va dung tai ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang doc hoi. lieu va cam xuc va dung tai ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang doc hoi. lieu va cam xuc va dung tai ((cua triet) OR (va triet))*.