Perhaps you should try some spelling variations:
nganh thong » nganh khong, nganh cong, nhanh chong
thong khoa » tuong khoa, hong khoa, phong khoa
nghien cua » nghien cuu, nghiep cua, nghiep vua
cach thoi » cac thoi, cach thuc, cach noi
hoc nganh » hoc nhanh
nhan dan » phan dau, gian dan, nhan tai
cua nhan » ca nhan, cua ngan, cua nha
thoi cua » hoi cua, thai cua, troi cua
may thoi » gay thoi, may thi, tay thoi
khoa may » khoa ma, hoa may, nha may
cong hoc » dong hoc, cong hoa, cong coc
sach hoi » sach doi, sach moi, hoach hoi

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 hoi) OR (cach thoi)) tai, nghien cua cong hoc nganh thong khoa may thoi cua nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoi) OR (cach thoi)) tai, nghien cua cong hoc nganh thong khoa may thoi cua nhan dan".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoi) OR (cach thoi)) tai, nghien cua cong hoc nganh thong khoa may thoi cua nhan dan*.