Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tac » cong ty
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap

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 - canh tranh cua nhung cong tac ((than tap) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - canh tranh cua nhung cong tac ((than tap) OR (phan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - canh tranh cua nhung cong tac ((than tap) or (phan tap))*.