Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
hieu quan » hieu qua, lieu quan, thien quan
cua nhung » va nhung
cong sach » ong sach, duong sach, luong sach
song sach » sang sach, ong sach, song bach
canh ban » can ban, canh dan, canh van
toan cau » toan cao, toan ban, toan tap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (hieu quan)) - canh ban cua nhung ((cong sach) or (song sach)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (hieu quan)) - canh ban cua nhung ((cong sach) OR (song sach)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (hieu quan)) - canh ban cua nhung ((cong sach) or (song sach)) toan cau*.