Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
tdanh trung » thanh trung, thanh tung, dang trung
chieu sang » chieu sach, chieu xanh, hieu lang
danh trung » dang trung, dinh trung, manh trung
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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 - ((danh trung) or (tdanh trung)) va thuong cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((danh trung) OR (tdanh trung)) va thuong cong san than cap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((danh trung) or (tdanh trung)) va thuong cong san than cap*.