Perhaps you should try some spelling variations:
nhanh khoa » nhan khoa, nganh khoa, hang khoa
hoc nhanh » hoc nganh, hoc phan
van thanh » ban thanh, van tuan
sach hoc » cach hoc, sach hoi, sach duoc
mach hoc » cach hoc, dich hoc, anh hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
khoa hoc » hoa hoc
hai van » thai van, ha van, hai tan
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: thu ((sach hoc) OR (mach hoc)) tap, nghien cuu dong hoc nhanh khoa hoc xa hai van thanh san~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach hoc) OR (mach hoc)) tap, nghien cuu dong hoc nhanh khoa hoc xa hai van thanh san".
• Adding a wildcard symbol may retrieve word variants: thu ((sach hoc) OR (mach hoc)) tap, nghien cuu dong hoc nhanh khoa hoc xa hai van thanh san*.