Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hoc nhanh » hoc phan
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoi » sach doi, sach moi, cach thoi
van nhan » van phan, van thanh, danh nhan
nhan dan » phan dau, gian dan, nhan tai
hoi tai » hoc tai, hoi trac
cuu mon » cuu mo, cuu mot, cuu cong
hai van » thai van, ha van, hai tan
ma hai » ta hai, va hai, xa hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach hoi tai, nghien cuu mon ((hoc nhanh) or (hoc nganh)) khong hoc ma hai van nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach hoi tai, nghien cuu mon ((hoc nhanh) OR (hoc nganh)) khong hoc ma hai van nhan dan.
• Adding a wildcard symbol may retrieve word variants: thuoc sach hoi tai, nghien cuu mon ((hoc nhanh) or (hoc nganh)) khong hoc ma hai van nhan dan*.