Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
va triet » va thiet, ve triet, cua triet
hanh dai » hanh tai, hanh dao, vanh dai
van hanh » van thanh, ban hanh, van anh
tuc van » thuc van, truc van, tuc va
tu sach » thu sach, su sach, te sach
ve cham » ve chat, vu cham, ve chim
dang xa » dang xay, lang xa, dang ha
va cham » va chat, va tham
y dang » ky dang, 2 dang, _ dang

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