Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
thang hoc » thang nhoc, than hoc, thanh hoc
hai doanh » lai doanh, nhap doanh, trai doanh
sach hoi » sach doi, sach moi, cach thoi
cong hoc » dong hoc, cong hoa, cong ho
cong coc » cong cuoc, cong cac, cong co
nhan van » nhan dan, nhan va, phan van
tu sach » thu sach, su sach, te sach
hoi tap » hoi dap, hoc tap, hoi tai
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 ((cong hoc) OR (cong coc)) nhanh thang hoc xa hai doanh nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoi tap, nghien cuu ((cong hoc) OR (cong coc)) nhanh thang hoc xa hai doanh nhan van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoi tap, nghien cuu ((cong hoc) OR (cong coc)) nhanh thang hoc xa hai doanh nhan van*.