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
dung cong » dung trong
van tuan » van ban, anh tuan
van quan » van ban
ho cuu » ho chu, ho cua, so cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho cuu tinh - hanh trinh luan ((nhung cong) OR (dung cong)) ((van tuan) or (van quan)) cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho cuu tinh - hanh trinh luan ((nhung cong) OR (dung cong)) ((van tuan) OR (van quan)) cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho cuu tinh - hanh trinh luan ((nhung cong) OR (dung cong)) ((van tuan) or (van quan)) cu".
• Adding a wildcard symbol may retrieve word variants: ho cuu tinh - hanh trinh luan ((nhung cong) OR (dung cong)) ((van tuan) or (van quan)) cu*.