Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
sach nuoc » sach duoc, cac nuoc, dich nuoc
bach tuoc » sach duoc
co sach » bo sach, cuon sach, hoc sach
dau vai » dau va, dau hai, dau tai
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach y, sach ty
cua cu » cua chu, cua cau, cua co
va dau » va dao
cua su » qua 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 ky lang xa hoi. hieu hien ((sach nuoc) or (bach tuoc)) va dau vai ((cua cu) OR (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co sach ky lang xa hoi. hieu hien ((sach nuoc) OR (bach tuoc)) va dau vai ((cua cu) OR (cua su))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "co sach ky lang xa hoi. hieu hien ((sach nuoc) or (bach tuoc)) va dau vai ((cua cu) OR (cua su))*".