Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
doi trieu » dong trieu, doi chieu, doi trinh
trinh cau » trinh chat, trinh chao, trinh tu
trinh chu » trinh cho, trinh thuc, trinh chat
cong luat » cong suat, cong luan, cuong luan
luat ngan » cua ngan, luat dan
ngan cau » ngan can, nganh dau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi trieu tinh - canh ((trinh cau) or (trinh chu)) phuong cong luat ngan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi trieu tinh - canh ((trinh cau) OR (trinh chu)) phuong cong luat ngan cau.
• Adding a wildcard symbol may retrieve word variants: doi trieu tinh - canh ((trinh cau) or (trinh chu)) phuong cong luat ngan cau*.