Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
phung cong » nhung cong, phong cong, nhung chong
hanh dong » anh dong, ha dong
lan phung » lan phuong, van phung, lan hung
dong lan » dong luan, dong lanh, dong san
cong li » cong ti, hong li, cong hai

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 sang) OR (chieu xanh)) - hanh dong lan phung cong li hoc cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu xanh)) - hanh dong lan phung cong li hoc cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu xanh)) - hanh dong lan phung cong li hoc cao*.