Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
coc doanh » cac doanh, hoa doanh, cho doanh
doanh hoa » doanh khoa, doanh hoan, danh hoa
song nho » cong nho, dong nho, song ho
song nhu » song ngu, song cuu, song hau
cong coc » cong cuoc, cong cac, cong co
dap phan » dam phan, dap phap, cap phan
phan van » pham van, thanh van, luan van
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((song nho) OR (song nhu)) tai, nghien cua cong coc doanh hoa hoc xa hoi dap phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((song nho) OR (song nhu)) tai, nghien cua cong coc doanh hoa hoc xa hoi dap phan van".
• Adding a wildcard symbol may retrieve word variants: thuat ((song nho) OR (song nhu)) tai, nghien cua cong coc doanh hoa hoc xa hoi dap phan van*.