Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan phung » luan phuong, luan chung, luan phong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
than tap » toan tap, han tap, phan tap
ho diep » hong diep, cho dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho diep tinh - hanh trinh luan phung ((cong dan) or (cong san)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho diep tinh - hanh trinh luan phung ((cong dan) OR (cong san)) than tap.
• Adding a wildcard symbol may retrieve word variants: ho diep tinh - hanh trinh luan phung ((cong dan) or (cong san)) than tap*.