Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
dong cong » duong cong, dung cong, dang cong
cong doan » cong dan, cong hoan, dong doanh
tranh ha » thanh ha, trang ha, trinh ha
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu, hang dau
ha dong » hoat dong, van dong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sang)) - canh tranh ha dong cong doan ((phan cac) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sang)) - canh tranh ha dong cong doan ((phan cac) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sang)) - canh tranh ha dong cong doan ((phan cac) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sang)) - canh tranh ha dong cong doan ((phan cac) OR (phan dau))*.