Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nganh » hoc nhanh
toc sach » hoc sach, doc sach, thuoc sach
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
thuoc xa » thuoc ma, thuoc va, thuoc la
cau nhan » chau nhan, ca nhan, cu nhan
moi tap » moi tai, toi tap
hoi cau » hoi chu, hoc cau, hoa cau
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: ((te sach) or (toc sach)) moi tap, nghien cuu dong hoc nganh khong thuoc xa hoi cau nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) moi tap, nghien cuu dong hoc nganh khong thuoc xa hoi cau nhan va.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) moi tap, nghien cuu dong hoc nganh khong thuoc xa hoi cau nhan va*.