Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
hieu hien » bieu hien, dieu hien, chieu chien
hien bach » vien bach, thien hach, hien hanh
hoc sach » hoc sinh, hoc cac, hoc anh
vai cua » dai cua, hai cua, lai cua
dau vai » dau va, dau hai, dau tai
tuoc va » thuoc va, nuoc va, duoc va
co sach » bo sach, cuon sach
_ lang » o lang, _ land
va dau » va dao
y lang » o lang, tay lang, yen lang
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((co sach) OR (hoc sach)) ((y lang) or (_ lang)) xa hoi. hieu hien bach tuoc va dau vai cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((co sach) OR (hoc sach)) ((y lang) OR (_ lang)) xa hoi. hieu hien bach tuoc va dau vai cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((co sach) OR (hoc sach)) ((y lang) or (_ lang)) xa hoi. hieu hien bach tuoc va dau vai cua cu*".