Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
viet cua » viec cua, viet ca, viet qua
van dinh » van minh, va dinh, xuan dinh
vien da » vien dai, hien dai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
va cao » va cac, va co, va dao

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 dang xa hoi. hieu ((va cao) or (vien da)) tuc ((van dinh) OR (van dich)) viet cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xa hoi. hieu ((va cao) OR (vien da)) tuc ((van dinh) OR (van dich)) viet cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky dang xa hoi. hieu ((va cao) or (vien da)) tuc ((van dinh) OR (van dich)) viet cua triet*".