Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
hanh dong » anh dong, ha dong
cua hanh » cua thanh, cua hang, cua manh
dong san » cong san, dong bang, dong von
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 chieu) OR (hoc thieu)) xanh - ((hanh trinh) or (canh tranh)) cua hanh dong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) xanh - ((hanh trinh) OR (canh tranh)) cua hanh dong san van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc thieu)) xanh - ((hanh trinh) or (canh tranh)) cua hanh dong san van ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc thieu)) xanh - ((hanh trinh) or (canh tranh)) cua hanh dong san van ban*.