Perhaps you should try some spelling variations:
phan hong » phan cong, pham hong, phan song
ban thanh » ban hanh, ban hang
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
hoc phan » hoc dan, hoc pho
hong hoc » thong hoc, dong hoc, hong phuoc
va thanh » gia thanh, va tinh, le thanh
so sach » so sanh, bo sach, co sach
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: so sach hoc tap, nghien cuu cong hoc phan hong hoc xa hoi ((va thanh) OR (ban thanh)) van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach hoc tap, nghien cuu cong hoc phan hong hoc xa hoi ((va thanh) OR (ban thanh)) van".
• Adding a wildcard symbol may retrieve word variants: so sach hoc tap, nghien cuu cong hoc phan hong hoc xa hoi ((va thanh) OR (ban thanh)) van*.