Perhaps you should try some spelling variations:
phuong dong » phuong dung, phuong hoang, chuong duong
thanh trung » thanh tung
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
thong cong » trong cong, tong cong, thong thong
trung cua » truong cua, trung tuan, trung cap
toan cau » toan cao, toan ban, toan 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 sang) OR (chieu xanh)) - thanh trung cua ((thong cong) or (phuong dong)) tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - thanh trung cua ((thong cong) OR (phuong dong)) tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (chieu xanh)) - thanh trung cua ((thong cong) or (phuong dong)) tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (chieu xanh)) - thanh trung cua ((thong cong) or (phuong dong)) tinh toan cau*.