Perhaps you should try some spelling variations:
chiet tach » chieu sach
chieu sang » chieu sach, chieu xanh, hieu lang
quan thong » quang thong, quan trong, xuan thong
cong quan » cuong quan, cong quang, tong quan
thong bai » thong tai, nhung bai, thong xay
bai than » bai toan, ban than, bay than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chiet tach) or (chieu sang)) - thanh cong quan thong thong bai than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chiet tach) OR (chieu sang)) - thanh cong quan thong thong bai than cau.
• Adding a wildcard symbol may retrieve word variants: ho ((chiet tach) or (chieu sang)) - thanh cong quan thong thong bai than cau*.