Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh hoa » thanh hoa, khanh hoa, danh hoa
sach hoi » sach moi, cach thoi, hoach hoi
sach doi » sach moi, sach dao, sach bai
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
van phan » van phong, van thanh, luan phan
phan dan » phan dang, phan dau, nhan dan
hoi van » hoi va, hoi dan, hai van
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach hoi) OR (sach doi)) tai, nghien cuu cong hoc nganh hoa hoc xa hoi van phan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach hoi) OR (sach doi)) tai, nghien cuu cong hoc nganh hoa hoc xa hoi van phan dan".
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoi) OR (sach doi)) tai, nghien cuu cong hoc nganh hoa hoc xa hoi van phan dan*.