Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hang vi » hang va, hang di, khang voi
cac tuc » cac toc, cac tu, cac tac
hieu ve » hieu va, hieu van
tu sach » thu sach, te sach, tu cach
lang xa » lang ha, dang xay, lang van
su sach » so sach, vu sach
y lang » o lang, _ lang, tay lang
tuc va » thuc va, truc va, tuc xa
ve cac » va cac, vien cac

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: ((tu sach) OR (su sach)) y lang xa hoi. hieu ve cac tuc va ((hang vi) OR (hanh vi)) ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) y lang xa hoi. hieu ve cac tuc va ((hang vi) or (hanh vi)) ve triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) y lang xa hoi. hieu ve cac tuc va ((hang vi) or (hanh vi)) ve triet*.