Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
trinh va » trinh van, trinh vat, trinh vi
trinh ve » trinh he, trinh vi, trinh viet
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho ((chieu xanh) or (chieu sang)) - hanh ((trinh va) OR (trinh ve)) nhung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho ((chieu xanh) OR (chieu sang)) - hanh ((trinh va) OR (trinh ve)) nhung cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho ((chieu xanh) or (chieu sang)) - hanh ((trinh va) OR (trinh ve)) nhung cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: cho ((chieu xanh) or (chieu sang)) - hanh ((trinh va) OR (trinh ve)) nhung cong dan toan tap*.