Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
han sang » han san, san sang, han yang
sinh dai » sinh thai, sinh vat, sinh li
van sang » van nang, van sung, van hang
cham tuc » nham thuc, pham thuc, tham thuc
te sach » toc sach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, truc va, tuc xa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((han sang) OR (van sang)) ma hoi. hieu ve cham tuc va ((sinh dai) OR (si dai)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((han sang) or (van sang)) ma hoi. hieu ve cham tuc va ((sinh dai) OR (si dai)) cua triet~".
• Adding a wildcard symbol may retrieve word variants: te sach ((han sang) or (van sang)) ma hoi. hieu ve cham tuc va ((sinh dai) OR (si dai)) cua triet*.