Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
cach thuc » anh thuc, cac thu
bach tuoc » sach duoc, sach nuoc
hoc nganh » hoc nhanh
dong hoc » dong co, dong luc
cac khoi » cac thoi, cac khoan, cach thoi
cuu dong » cuu cong, cuu tong, cuu long
khoa hoc » hoa hoc
va nhan » van nhan, ca nhan, va phan
khoi va » hoi va, khi va, choi va
hoc cac » hoc cao
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: tu ((bach tuoc) or (cach thuc)) tap, nghien cuu dong hoc nganh khoa hoc cac khoi va nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((bach tuoc) OR (cach thuc)) tap, nghien cuu dong hoc nganh khoa hoc cac khoi va nhan va.
• Adding a wildcard symbol may retrieve word variants: tu ((bach tuoc) or (cach thuc)) tap, nghien cuu dong hoc nganh khoa hoc cac khoi va nhan va*.