Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hien hanh » dieu hanh
trinh han » trinh quan
bang cong » dang cong, bang song, hang cong
khoan cam » khoa cam, khoan va, phan cam
han bang » can bang, hai bang, gan bang
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - hanh trinh han bang cong tan ((((than cap) or (khoan cam))) or (thanh san))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hanh trinh han bang cong tan ((((than cap) OR (khoan cam))) OR (thanh san)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh trinh han bang cong tan ((((than cap) or (khoan cam))) or (thanh san))*.