Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
van thang » van thanh, van khang, van hang
van toan » van tuan, van tan, van thanh
dan than » dan chan, ban than, van than

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 xanh - canh tranh cua nhung cong ((van toan) or (((dan than) or (van thang)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - canh tranh cua nhung cong ((van toan) OR (((dan than) OR (van thang)))) cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - canh tranh cua nhung cong ((van toan) or (((dan than) or (van thang)))) cau*.