Perhaps you should try some spelling variations:
chiet tach » chieu sach
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan dau » phan tu, hang dau
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((trieu tinh) or (((chiet tach) or (chieu sang)))) - canh tranh cua nhung cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((trieu tinh) OR (((chiet tach) OR (chieu sang)))) - canh tranh cua nhung cong tan phan dau.
• Adding a wildcard symbol may retrieve word variants: ho ((trieu tinh) or (((chiet tach) or (chieu sang)))) - canh tranh cua nhung cong tan phan dau*.