Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
nhung cong » thong cong, hang cong, nhung don
dung cong » dung trong
lang than » lang thang, lang thanh, sang than
trinh he » trinh han, trinh hoa, trinh thi
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((chieu xanh) OR (chieu sach)) - canh trinh he ((nhung cong) or (dung cong)) lang than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((chieu xanh) OR (chieu sach)) - canh trinh he ((nhung cong) OR (dung cong)) lang than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((chieu xanh) OR (chieu sach)) - canh trinh he ((nhung cong) or (dung cong)) lang than cao".
• Adding a wildcard symbol may retrieve word variants: toc ((chieu xanh) OR (chieu sach)) - canh trinh he ((nhung cong) or (dung cong)) lang than cao*.