Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
van dinh » van minh, van dich, va dinh
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve chao » ve chat, ve cham, ve cho
va tinh » may tinh
cua tre » cua te, cuu tre, dua tren

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang x ho. hieu ve chao xu ((va tinh) or (van dinh)) va ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang x ho. hieu ve chao xu ((va tinh) OR (van dinh)) va ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang x ho. hieu ve chao xu ((va tinh) or (van dinh)) va ((cua tre) OR (cua triet))*".