Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu lang » hieu quang, nhieu tang, hieu van
tranh cua » doanh cua, manh cua
dung cong » dung trong
cong toan » cong tan, cong hoan, cong tuan
toan phan » thanh phan, toan ban, hoa phan
cua dung » cua dang, cua dong, qua dung

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 sang) or (hieu lang)) - hanh tranh cua dung cong toan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (hieu lang)) - hanh tranh cua dung cong toan phan tu.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (hieu lang)) - hanh tranh cua dung cong toan phan tu*.