Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
va thanh » gia thanh, ban thanh, va tinh
su triet » su viet, su tien, ve triet
su sach » so sach
vu sach » vu bach, vu khach
lang xa » lang ha, dang xay, lang van
y lang » o lang, _ lang, tay lang
ve cac » vien cac
van su » dan su

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