Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh trinh » canh tranh, hanh trinh, canh tinh
trinh toan » tinh toan, thanh toan, trinh han
toan hung » toan chung, toan khung, tran hung
hung cong » nhung cong, hung cuong, phung cong
chan tu » phan tu, han tu, chai tu
chon tu » con tu, cho tu, choi tu

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 xanh) OR (chieu tinh)) - canh trinh toan hung cong trinh ((chan tu) or (chon tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu tinh)) - canh trinh toan hung cong trinh ((chan tu) OR (chon tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu tinh)) - canh trinh toan hung cong trinh ((chan tu) or (chon tu))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu tinh)) - canh trinh toan hung cong trinh ((chan tu) or (chon tu))*.