Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu lang » chieu sang, hieu quang, nhieu tang
ganh nang » anh nang, nganh nong, van nang
nang doc » nang luc
doc cong » hoc cong, duc cong, do cong
dong dan » dong danh, duong dan, dong san
dan than » dan chan, ban than, van 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: hoi ((hieu lang) or (chieu xanh)) - ganh nang doc cong dong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((hieu lang) OR (chieu xanh)) - ganh nang doc cong dong dan than cau.
• Adding a wildcard symbol may retrieve word variants: hoi ((hieu lang) or (chieu xanh)) - ganh nang doc cong dong dan than cau*.