Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
trung lan » trung van, trong lan, trung lap
trung can » trung cap, trung van, trong can
hoang dan » hoang dang, hoang van, hoang san
dan can » dan chan, dan canh, dan ca
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu sach) OR (chieu sang)) - thanh ((trung lan) or (trung can)) phuong hoang dan can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu sach) OR (chieu sang)) - thanh ((trung lan) OR (trung can)) phuong hoang dan can cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((chieu sach) OR (chieu sang)) - thanh ((trung lan) or (trung can)) phuong hoang dan can cau".
• Adding a wildcard symbol may retrieve word variants: toc ((chieu sach) OR (chieu sang)) - thanh ((trung lan) or (trung can)) phuong hoang dan can cau*.