Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
chieu sang » chieu sach, chieu xanh, hieu lang
chiet tach » chieu sach
cua thuong » cua truong, cua phuong, ca thuong
huong cua » dung cua
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than cao » toan cao, thai cao, than cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sang) or (chiet tach)) - anh huong cua thuong cong tan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chiet tach)) - anh huong cua thuong cong tan than cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chiet tach)) - anh huong cua thuong cong tan than cao*.