Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nhanh hung » thanh hung, nhanh hong, nhanh chuong
coc nhanh » hoc nhanh, doc nhanh, cach nhanh
cach tuc » cach thuc, cach tu, bach tuoc
cong coc » cong cuoc, cong cac, cong co
hung hoc » chung hoc, khung hoc, nhung hoc
nhan van » nhan va, phan van, nha van
nhan dan » phan dau, gian dan, nhan tai
tu cach » tu cac
hoi dan » hoa dan, hoc dan, hoi dap
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: tu cach tuc tap, nghien cua cong coc nhanh hung hoc xa hoi dan ((nhan van) or (nhan dan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach tuc tap, nghien cua cong coc nhanh hung hoc xa hoi dan ((nhan van) OR (nhan dan)).
• Adding a wildcard symbol may retrieve word variants: tu cach tuc tap, nghien cua cong coc nhanh hung hoc xa hoi dan ((nhan van) or (nhan dan))*.