Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua
cong sach » ong sach, song sach, duong sach
sach toan » hach toan, sach tranh, hoach toan
manh cua » doanh cua, ban cua
toan ban » van ban

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 (chieu xanh)) - hanh ((tranh cua) or (manh cua)) trong cong sach toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu xanh)) - hanh ((tranh cua) OR (manh cua)) trong cong sach toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu xanh)) - hanh ((tranh cua) or (manh cua)) trong cong sach toan ban*.