Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu sang » chieu sang, tieu dung, tiem nang
hanh dong » ha dong
van thong » van thuong, van phong, va thong
anh dong » anh huong, anh son
cong tan » cong tac, cong san, cong thanh
tran cau » tran chau, toan cau, ran cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - ((hanh dong) or (anh dong)) van thong cong tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - ((hanh dong) OR (anh dong)) van thong cong tan tran cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - ((hanh dong) or (anh dong)) van thong cong tan tran cau*.