Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
hang doanh » hanh doanh, nhung doanh, van doanh
doanh hoac » doanh hoan, doanh khoa, danh hoa
hoac khong » hoa khong, hoc khong, hay khong
khong mong » khong dong, khong xuong, khong trong
mong van » muong van, song van, tong van
van tai » von tai, van tuan
tai tap » bai tap, tai tao, hai tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chieu sang)) - hang doanh hoac khong mong van tai tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - hang doanh hoac khong mong van tai tap.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu sang)) - hang doanh hoac khong mong van tai tap*.