Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
nhung cong » thong cong, hang cong, nhung don
mot chieu » doi chieu
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
manh van » anh van, menh van, canh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (ho chieu)) xanh - hanh trinh luan ((nhung cong) or (dung cong)) manh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (ho chieu)) xanh - hanh trinh luan ((nhung cong) OR (dung cong)) manh van ban.
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (ho chieu)) xanh - hanh trinh luan ((nhung cong) or (dung cong)) manh van ban*.