Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nhanh cong » nhanh chong, thanh cong, nganh cong
cach thoi » cac thoi, cach thuc, cach noi
hoc nhanh » hoc nganh, hoc phan
cach hoc » cach thuc, dich hoc, cac hop
cong hoc » dong hoc, cong hoa, cong coc
ca doanh » cac doanh, cua doanh, cao doanh
hoc xa » hoc ma
hoi ca » hoi cua, hoi cac, hoi cau

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 hoc) OR (cach thoi)) tap, nghien cua cong hoc nhanh cong hoc xa hoi ca doanh tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((cach hoc) OR (cach thoi)) tap, nghien cua cong hoc nhanh cong hoc xa hoi ca doanh tai".
• Adding a wildcard symbol may retrieve word variants: tu ((cach hoc) OR (cach thoi)) tap, nghien cua cong hoc nhanh cong hoc xa hoi ca doanh tai*.