Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, hien hanh, hieu van
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong san » cong tac
san van » tan van, luan van, tran van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((hieu manh) OR (dieu hanh))) or (chieu xanh)) - hanh trinh cua bang cong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu manh) OR (dieu hanh))) OR (chieu xanh)) - hanh trinh cua bang cong san van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hieu manh) OR (dieu hanh))) or (chieu xanh)) - hanh trinh cua bang cong san van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu manh) OR (dieu hanh))) or (chieu xanh)) - hanh trinh cua bang cong san van ban*.