Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhieu tang » chieu sang, hieu lang, nhiet nang
dung cong » dung trong
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: doi ((chieu xanh) or (nhieu tang)) - canh ((trinh va) or (trinh ve)) dung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (nhieu tang)) - canh ((trinh va) OR (trinh ve)) dung cong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (nhieu tang)) - canh ((trinh va) or (trinh ve)) dung cong dan toan tap*.