Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
dung sai » dung tai, dung va, dung dat
tu cach » tu cac
hieu ve » hieu va, hieu van
ha dung » hai dung, kha dung, nha dung
sai cua » dai cua, hai cua, lai cua
ve nam » he nam, va nam, le nam
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 cach) or (thu sach)) ky nang x hoi. hieu ve nam thu ha dung sai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ky nang x hoi. hieu ve nam thu ha dung sai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ky nang x hoi. hieu ve nam thu ha dung sai cua triet*.