Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nghien cac » nghiep cach, nghien cuu, nghiep cay
chong doc » chong dich, chon loc, hong duc
hoc nhanh » hoc nganh, hoc phan
sach hoi » sach doi, sach moi, cach thoi
chat tai » chat thai, cao tai, khau tai
cong hoc » dong hoc, cong hoa, cong coc
cac cong » cua cong
loi cao » loi ca, loi bao, loi cau
loi can » loi ca, voi can, loi cau
hoi tap » hoi dap, hoc tap, hoi tai
vu sach » vu bach, su sach, vu khach
doc xa » duoc xa, hoc xa, do xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach hoi tap, nghien cac cong hoc nhanh chong doc xa ((loi cao) OR (loi can)) chat tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach hoi tap, nghien cac cong hoc nhanh chong doc xa ((loi cao) OR (loi can)) chat tai".
• Adding a wildcard symbol may retrieve word variants: vu sach hoi tap, nghien cac cong hoc nhanh chong doc xa ((loi cao) OR (loi can)) chat tai*.