Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
nhung don » nhung van, nhung bo
ho chieu » theo chieu, hoc thieu, doi chieu
doan van » doan va, hoang van, luan van

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

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