Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh thanh » canh tranh, danh thanh, anh thanh
van phuong » van phong, va phuong, van chuong
cong hoan » cong hoa, dong hoa, cong san
hoan phan » hoa phan, toan phan, doan phan
ho chieu » theo chieu, hoc thieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - canh thanh ((van phuong) or (va thuong)) cong hoan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh thanh ((van phuong) OR (va thuong)) cong hoan phan tu*.