Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
tranh van » tran van, trinh van, thanh van
hung cong » hung cuong, phung cong, dung cong
van toan » van tuan, van tan, van thanh
toan ban » van ban

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