Perhaps you should try some spelling variations:
nganh dong » nganh cong, nhanh dong, nganh nong
dong thuoc » dung thuoc, dang thuoc, don thuoc
cuu chong » cuu cong, cuu phong, cuu phuong
chong hoc » chung hoc, chong doc, thong hoc
hoc nganh » hoc nhanh
ban thanh » ban hanh, ban hang
thanh van » thanh san, thanh toan, thanh phan
thuoc xa » thuoc ma, thuoc va, thuoc la
tu sach » thu sach, su sach, te sach
doi dap » hoi dap, doi dau, do dap
hoi ban » hoi dan, hoi bai, doi ban
do dai » co dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((doi dap) or (do dai)), nghien cuu chong hoc nganh dong thuoc xa hoi ban thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((doi dap) OR (do dai)), nghien cuu chong hoc nganh dong thuoc xa hoi ban thanh van.
• Adding a wildcard symbol may retrieve word variants: tu sach ((doi dap) or (do dai)), nghien cuu chong hoc nganh dong thuoc xa hoi ban thanh van*.