Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
nhung cong » dung cong, thong cong, hang cong
hieu lang » hieu quang, nhieu tang, hieu van
cua nhung » va nhung
tinh cua » trinh cua, sinh cua, tinh chat
cong tan » cong tac, cong san, cong thanh
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: doi ((chieu sang) or (hieu lang)) - nhanh tinh cua nhung cong tan ((phan lap) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (hieu lang)) - nhanh tinh cua nhung cong tan ((phan lap) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) or (hieu lang)) - nhanh tinh cua nhung cong tan ((phan lap) or (phan dau))*.