Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
va thanh » gia thanh, ban thanh, va tinh
van cham » van chat, van tham, van pham
va cham » va chat, va tham
lap cua » lai cua, tap cua, lam cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cao hoi » cau hoi, cao hoc, tao hoi
loc va » hoc va, luc va
co hoi » co hoc, co loi

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 ky nang ((cao hoi) OR (co hoi)). thien ((van cham) or (va cham)) loc va thanh lap cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((cao hoi) OR (co hoi)). thien ((van cham) OR (va cham)) loc va thanh lap cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((cao hoi) OR (co hoi)). thien ((van cham) or (va cham)) loc va thanh lap cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((cao hoi) OR (co hoi)). thien ((van cham) or (va cham)) loc va thanh lap cua triet*.