Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nghien cac » nghiep cach, nghien cuu, nghiep cay
hoa nhanh » hoc nhanh, hoa thanh, hoa khanh
chong doc » chong dich, chon loc, hong duc
cac cong » cua cong
cong hoa » dong hoa, dong hoc, hang hoa
gian dan » gian lang
su sach » vu sach
so sach » so sanh, bo sach, co sach
ca gian » ca giang, ca giao, va gian
doc xa » duoc xa, hoc xa, do xa
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) hoc tap, nghien cac cong hoa nhanh chong doc xa hoi ca gian dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) hoc tap, nghien cac cong hoa nhanh chong doc xa hoi ca gian dan".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) hoc tap, nghien cac cong hoa nhanh chong doc xa hoi ca gian dan*.