Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
khong hoc » thong hoc, khong thuoc, khong chuc
khung hoc » chung hoc, nhung hoc, thuong hoc
dap thanh » dao thanh, dat thanh, da thanh
thanh van » thanh san, thanh toan, thanh phan
thoi tap » toi tap, hoc tap, thoi dai
cong hoc » dong hoc, cong hoa, cong coc
su cach » su sach, tu cach, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cach thoi tap, nghien thu cong hoc nganh ((khong hoc) OR (khung hoc)) xa hoi dap thanh van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cach thoi tap, nghien thu cong hoc nganh ((khong hoc) OR (khung hoc)) xa hoi dap thanh van".
• Adding a wildcard symbol may retrieve word variants: su cach thoi tap, nghien thu cong hoc nganh ((khong hoc) OR (khung hoc)) xa hoi dap thanh van*.