Perhaps you should try some spelling variations:
luan thuong » luat thuong, luan phuong, luan tuong
thanh tang » thanh thang, thanh trang, thanh tung
lan thuong » han thuong, lan phuong, hang thuong
lieu tinh » trieu tinh, diep tinh, bien tinh
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - thanh tang ((luan thuong) or (lan thuong)) cong tac phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh tang ((luan thuong) OR (lan thuong)) cong tac phan tu.
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh tang ((luan thuong) or (lan thuong)) cong tac phan tu*.