Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach ty, sach kem
dang xa » dang xay, lang xa, dang ha
cac tuc » cac toc, cac tu, cac tac
dan vai » dan va, dan vat, den vai
dan tai » van tai, dan thi, han tai
tuc va » thuc va, truc va, tuc xa

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) or (sach y)) dang xa hoi. lieu va cac tuc va ((dan vai) OR (dan tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) dang xa hoi. lieu va cac tuc va ((dan vai) OR (dan tai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sach y)) dang xa hoi. lieu va cac tuc va ((dan vai) OR (dan tai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) dang xa hoi. lieu va cac tuc va ((dan vai) OR (dan tai)) cua triet*.