Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nghiem thuc » nghiem thuoc, nghiep thuc, nhiem thuc
nghien thu » nghiep thuc, nghien cuu, nghe thu
doc nhanh » hoc nhanh, doc hanh, doc thanh
chong hoc » chung hoc, chong doc, thong hoc
toc sach » hoc sach, doc sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
cong doc » chong doc, cong coc, cong dac
nhan van » nhan dan, nhan va, phan van
va nhan » van nhan, ca nhan, va phan
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: toc sach hoc tap, ((nghien thu) OR (nghiem thuc)) cong doc nhanh chong hoc xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach hoc tap, ((nghien thu) OR (nghiem thuc)) cong doc nhanh chong hoc xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: toc sach hoc tap, ((nghien thu) OR (nghiem thuc)) cong doc nhanh chong hoc xa hoi va nhan van*.