Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
canh sinh » canh tinh, canh binh, tinh sinh
bang cong » dang cong, bang song, hang cong
hang nong » thang long, han tong
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu sach) or (chieu sang)) - canh sinh vat ((bang cong) or (hang nong)) dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chieu sang)) - canh sinh vat ((bang cong) OR (hang nong)) dan phan dau.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chieu sang)) - canh sinh vat ((bang cong) or (hang nong)) dan phan dau*.