Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
trinh cua » tinh cua, trinh luat, trinh quan
dung cong » dung trong
vang quan » van quan, tang quan, hang quan
nang quan » ban quan, nang suat
sinh cua » manh cua, dinh cuu, sinh va

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 - hanh ((trinh cua) or (sinh cua)) dung cong ((vang quan) OR (nang quan)) cua~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - hanh ((trinh cua) OR (sinh cua)) dung cong ((vang quan) OR (nang quan)) cua*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sang - hanh ((trinh cua) or (sinh cua)) dung cong ((vang quan) OR (nang quan)) cua*".