Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
tinh vai » tinh va, tinh hai, tinh bai
hieu ve » hieu va, hieu van
va tinh » may tinh
vai cua » dai cua, hai cua, lai cua
ve coc » ve cuoc, ve cac, ve co
luc va » duc va, tuc va, loc va
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: ((te sach) OR (toc sach)) ky nang x hoi. hieu ve coc luc va tinh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ky nang x hoi. hieu ve coc luc va tinh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ky nang x hoi. hieu ve coc luc va tinh vai cua triet*.