Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
dong cua » dung cua, cong cua, huong cua
than cao » toan cao, thai cao, than cap
toan ban » van ban
ha dong » hoat dong, van dong

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 - ha dong cua ((nhung cong) or (dung cong)) dan ((than cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - ha dong cua ((nhung cong) OR (dung cong)) dan ((than cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - ha dong cua ((nhung cong) or (dung cong)) dan ((than cao) or (toan ban))*.