Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
sach hoi » sach doi, sach moi, cach thoi
cong hoc » dong hoc, cong coc, cong ho
cong hoa » dong hoa, dong hoc, hang hoa
tu sach » thu sach, su sach, te sach
hoi tap » hoi dap, hoc tap, hoi tai
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
nhan va » nhan tai, nhan dan, nhan tao
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: tu sach hoi tap, nghien cuu mot hoc nhanh ((cong hoc) OR (cong hoa)) xa hoi ca nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoi tap, nghien cuu mot hoc nhanh ((cong hoc) OR (cong hoa)) xa hoi ca nhan va".
• Adding a wildcard symbol may retrieve word variants: tu sach hoi tap, nghien cuu mot hoc nhanh ((cong hoc) OR (cong hoa)) xa hoi ca nhan va*.