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, cong tan
lang cong » dang cong, bang cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tuong va » truong va, thuong va, luong va
toan cao » toan tap
toan ban » van ban
va lang » va nang, hoa lang

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