Perhaps you should try some spelling variations:
thuoc nganh » thuong nganh, hoc nganh, chuc nganh
long thuoc » luong thuoc, dong thuoc, khong thuoc
cuu long » cuu cong, cuu tong, cuu nang
cong hoc » dong hoc, cong coc, cong ho
cong hoa » dong hoa, dong hoc, hang hoa
dap nhan » dap nha, dac nhan, dam nhan
nhan van » nhan dan, nhan va, phan van
anh hoc » sinh hoc, benh hoc, hinh hoc
ke anh » le anh, ky anh, de anh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ke anh hoc tap, nghien cuu long thuoc nganh ((cong hoc) OR (cong hoa)) xa hoi dap nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ke anh hoc tap, nghien cuu long thuoc nganh ((cong hoc) OR (cong hoa)) xa hoi dap nhan van".
• Adding a wildcard symbol may retrieve word variants: ke anh hoc tap, nghien cuu long thuoc nganh ((cong hoc) OR (cong hoa)) xa hoi dap nhan van*.