Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung cap, dung cua
cong doan » cong dan, cong hoan, dong doanh
doan van » doan va, hoang van, luan van

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