Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
van tuan » van ban, anh tuan
van quan » van ban
ho cuu » ho chu, so cuu, khao cuu
ho cua » hoc cua, hoi cua, hoa cua

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