Perhaps you should try some spelling variations:
nhanh thong » nhanh chong, nhanh thang, nhan thong
hoc nhanh » hoc nganh, hoc phan
sach hoc » cach hoc, sach hoi, mach hoc
thong ha » hong ha, thong va, thong phan
nhan tai » van tai, toan tai
hang tai » hang va, dung tai
tu sach » thu sach, su sach, te sach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
ha xa » hoa xa, he xa, va xa

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 ha xa hoi va ((nhan tai) OR (hang tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu mot hoc nhanh thong ha xa hoi va ((nhan tai) OR (hang tai))*".