Perhaps you should try some spelling variations:
nghien cac » nghiep cach, nghien cuu, nghiep cay
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
cach hoc » cach thuc, cach thoi, dich hoc
cac cong » cua cong
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
xua thai » xuan thai, xa thai, xua hai
thai van » thi van, thanh van, thai vung
phan van » pham van, thanh van, luan van
bo cach » bo sach, bo canh, co cach
hoc xua » hoc cua, hoc xa, hoc lua
nhan va » nhan tai, nhan dan, nhan tao

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo cach hoc tap, nghien cac cong hoc nganh khoa hoc xua thai van ((phan van) or (nhan va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo cach hoc tap, nghien cac cong hoc nganh khoa hoc xua thai van ((phan van) OR (nhan va)).
• Adding a wildcard symbol may retrieve word variants: bo cach hoc tap, nghien cac cong hoc nganh khoa hoc xua thai van ((phan van) or (nhan va))*.