Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
ty nang » ty xang, ty hang, ly nang
dan bac » dan ba, van bac, dong bac
lai cua » dai cua, hai cua, lai chau

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 ((ty nang) OR (ky nang)) xa hoi. hieu ((dan bac) or (van ban)) day va thanh lai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ky nang)) xa hoi. hieu ((dan bac) OR (van ban)) day va thanh lai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ky nang)) xa hoi. hieu ((dan bac) or (van ban)) day va thanh lai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ky nang)) xa hoi. hieu ((dan bac) or (van ban)) day va thanh lai cua triet*.