Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » thong cong, hang cong, nhung don
tranh cua » doanh cua, manh cua
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tan chan » dan chan, ban chan, can chan
chan tu » phan tu, han tu, chon tu

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 - canh tranh cua ((nhung cong) or (dung cong)) tan chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh tranh cua ((nhung cong) OR (dung cong)) tan chan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh tranh cua ((nhung cong) or (dung cong)) tan chan tu*.