Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ngay tuc » ngay tuoi, ngu tuc, nay tu
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, ang xa, dang xay
mang xa » lang xa, mang may, dang xay
va ngay » va nay, tan ngay
tuc va » thuc va, truc va, tuc xa
dan vi » doan vi, dan va, gan vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty ((xang xa) or (mang xa)) hoi. lieu va ngay tuc va ((dan vi) OR (don vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((xang xa) OR (mang xa)) hoi. lieu va ngay tuc va ((dan vi) OR (don vi)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty ((xang xa) or (mang xa)) hoi. lieu va ngay tuc va ((dan vi) OR (don vi)) cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ty ((xang xa) or (mang xa)) hoi. lieu va ngay tuc va ((dan vi) OR (don vi)) cua triet*.