Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
chieu sang » chieu sach, chieu xanh, hieu lang
cong thanh » dong thanh, cong trinh, truong thanh
khoa dung » khoa cong
ho chieu » theo chieu, hoc thieu, doi chieu
hoc dung » hoc ung, hoc dan, tac dung
cong tan » cong tac, cong san, cong ty
hang cau » hang dau, hang ca, nhung cau

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 tuong ((khoa dung) OR (hoc dung)) ((cong tan) or (cong thanh)) hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - thanh tuong ((khoa dung) OR (hoc dung)) ((cong tan) OR (cong thanh)) hang cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - thanh tuong ((khoa dung) OR (hoc dung)) ((cong tan) or (cong thanh)) hang cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - thanh tuong ((khoa dung) OR (hoc dung)) ((cong tan) or (cong thanh)) hang cau*.