Perhaps you should try some spelling variations:
chieu xanh » chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
manh tung » manh hung, thanh tung
cua nhung » va nhung
cong doan » cong dan, cong hoan, dong doanh
tung cua » trung cua, tuong cua, dung cua
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: hoc ((((chieu xanh) or (chieu tinh))) or (chieu sach)) - manh tung cua nhung cong doan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((chieu xanh) OR (chieu tinh))) OR (chieu sach)) - manh tung cua nhung cong doan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((chieu xanh) or (chieu tinh))) or (chieu sach)) - manh tung cua nhung cong doan van ban*.