Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
danh sai » dung sai, danh bat, danh dau
su triet » su viet, su tien, ve triet
te sach » toc sach
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
va danh » va dinh, va dan, va hanh
cua tuc » cua duc, cua tu, cua thuoc
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land

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 ((y lang) OR (_ lang)) xa hoi. hieu van cam duc va danh sai ((su triet) OR (cua tuc))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y lang) OR (_ lang)) xa hoi. hieu van cam duc va danh sai ((su triet) or (cua tuc))~".
• Adding a wildcard symbol may retrieve word variants: te sach ((y lang) OR (_ lang)) xa hoi. hieu van cam duc va danh sai ((su triet) or (cua tuc))*.