Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh toan » tinh toan, thanh toan, trinh han
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
tran tin » tran tien, trang tin, tran tan
toan tin » toan tien, toan dien, toan ban
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: doi ((chieu xanh) or (lieu tinh)) - thanh ((tran tin) OR (toan tin)) dung cong trinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (lieu tinh)) - thanh ((tran tin) OR (toan tin)) dung cong trinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (lieu tinh)) - thanh ((tran tin) OR (toan tin)) dung cong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (lieu tinh)) - thanh ((tran tin) OR (toan tin)) dung cong trinh toan cau*.