Perhaps you should try some spelling variations:
nhanh thong » nhanh chong, nhan thong, nhanh hong
nhanh thang » nhanh thanh, nhanh quang, hanh trang
sach hoc » cach hoc, sach hoi, mach hoc
phan dan » phan dang, phan dau, nhan dan
tu sach » thu sach, su sach, te sach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
va phan » van phan, va phat, va phap
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: tu sach hoc tap, nghien cuu mot hoc ((nhanh thong) OR (nhanh thang)) hoc xa hoi va phan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu mot hoc ((nhanh thong) OR (nhanh thang)) hoc xa hoi va phan dan".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mot hoc ((nhanh thong) OR (nhanh thang)) hoc xa hoi va phan dan*.