Perhaps you should try some spelling variations:
phuong trinh » chuong trinh, cong trinh, huong tran
cong phuong » cong thuong, cong huong, dong phuong
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hanh hang » thanh hang, hang hang, hanh han
hang tai » hang va, dung tai
han cau » hang cau, phan cau, han dau
van cau » van dau, van hau, van chat

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 sang) or (chieu xanh)) - hanh hang tai cong phuong trinh ((han cau) OR (van cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - hanh hang tai cong phuong trinh ((han cau) OR (van cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chieu xanh)) - hanh hang tai cong phuong trinh ((han cau) OR (van cau))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu xanh)) - hanh hang tai cong phuong trinh ((han cau) OR (van cau))*.