Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu tach » hieu cach, chiet tach, chieu sach
luat hanh » luat hinh, luat canh, luat danh
cong doan » cong dan, cong hoan, dong doanh
cong danh » cuong danh, cong dan, cong thanh
doc hieu » toc thieu, hoc thieu, hoc hien
quan cau » quang cao, toan cau, quan ha

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: doc hieu tach - hanh trinh luat hanh ((cong doan) OR (cong danh)) quan cau~.
• Adding a wildcard symbol may retrieve word variants: doc hieu tach - hanh trinh luat hanh ((cong doan) or (cong danh)) quan cau*.