Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nhanh khoa » nhan khoa, nganh khoa, hang khoa
hoc nhanh » hoc nganh, hoc phan
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
van tuan » van quan, van ban
hoc xa » hoc ma

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 tap, nghien thu cong hoc nhanh khoa hoc xa hoi ((van tuan) or (anh tuan)) san~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach hoc tap, nghien thu cong hoc nhanh khoa hoc xa hoi ((van tuan) OR (anh tuan)) san.
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien thu cong hoc nhanh khoa hoc xa hoi ((van tuan) or (anh tuan)) san*.