Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
trinh vat » trinh van, trinh luat, sinh vat
dung cong » dung trong
trinh va » trinh van, trinh ve, trinh vi
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (lieu tinh)) - hanh ((trinh va) OR (trinh vat)) dung cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (lieu tinh)) - hanh ((trinh va) OR (trinh vat)) dung cong dan toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (lieu tinh)) - hanh ((trinh va) OR (trinh vat)) dung cong dan toan cau*.