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, dieu hanh, hien hanh
trinh cua » tinh cua, trinh luat, trinh quan
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
tran van » luan van
tan van » tang van, luan van, dang 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 (chieu xanh)) - hanh trinh cua bang cong ((tan van) OR (tran van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (chieu xanh)) - hanh trinh cua bang cong ((tan van) OR (tran van)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) or (chieu xanh)) - hanh trinh cua bang cong ((tan van) OR (tran van)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (chieu xanh)) - hanh trinh cua bang cong ((tan van) OR (tran van)) ban*.