Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
cua nhung » va nhung
van thanh » ban thanh, van tuan
toan tai » toan tap, doanh tai, toan ban
tan toan » tan tran, tap toan, van toan
tai cua » thai cua, tai cuc, tri cua

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