Perhaps you should try some spelling variations:
luat trong » suat trong, thuat trong, luat thuong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
hanh tang » hanh trang, anh tang, hanh mang
tang luat » tang luan, nang suat, hang luan
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu tinh - hanh tang luat trong cong ((dan toan) OR (dan than)) cao~.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - hanh tang luat trong cong ((dan toan) or (dan than)) cao*.