Perhaps you should try some spelling variations:
nhanh khoa » nhan khoa, nganh khoa, hang khoa
coc nhanh » hoc nhanh, doc nhanh, cach nhanh
sach hoi » sach doi, sach moi, cach thoi
cuu cong » cua cong, thu cong, cac cong
cong coc » cong cuoc, cong cac, cong co
khoa hoc » hoa hoc
lang tai » lang thai, hang tai, sang tai
tang tai » hang tai, dung tai, sang tao
so sach » so sanh, bo sach, co sach
hoi tap » hoi dap, hoc tap, hoi tai
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 hoi tap, nghien cuu cong coc nhanh khoa hoc xa hoi va ((lang tai) OR (tang tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach hoi tap, nghien cuu cong coc nhanh khoa hoc xa hoi va ((lang tai) OR (tang tai))".
• Adding a wildcard symbol may retrieve word variants: so sach hoi tap, nghien cuu cong coc nhanh khoa hoc xa hoi va ((lang tai) OR (tang tai))*.