Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
tac thong » tac thuong, tac trong, tac chong
cong nang » cong ngang, cong nong, cong vang
cong lang » cong vang, cong luong, cong quang
thanh dau » thanh dat, thanh dam, thanh mau
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty

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 - thanh cong tac thong ((cong nang) OR (cong lang)) thanh dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh cong tac thong ((cong nang) OR (cong lang)) thanh dau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh cong tac thong ((cong nang) OR (cong lang)) thanh dau*.