Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
cong doan » cong dan, cong hoan, dong doanh
ho chieu » theo chieu, hoc thieu, doi chieu
phan dau » phan tu, hang dau

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 sang - ((thanh trung) or (thanh tung)) cua thong cong doan ((phan lap) OR (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh trung) OR (thanh tung)) cua thong cong doan ((phan lap) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((thanh trung) or (thanh tung)) cua thong cong doan ((phan lap) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((thanh trung) or (thanh tung)) cua thong cong doan ((phan lap) OR (phan dau))*.