Perhaps you should try some spelling variations:
thuoc mach » thuoc sach, thuong mach, thuoc ma
hoc nhanh » hoc phan
chong hoc » chung hoc, chong doc, thong hoc
mach hoc » cach hoc, dich hoc, anh hoc
phan van » pham van, thanh van, luan van
cuu mot » cua mot, cuu mo, huu mot
va phan » van phan, va phat, va phap
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc mach hoc tap, nghien cuu mot ((hoc nhanh) OR (hoc nganh)) chong hoc ma hoi va phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc mach hoc tap, nghien cuu mot ((hoc nhanh) OR (hoc nganh)) chong hoc ma hoi va phan van".
• Adding a wildcard symbol may retrieve word variants: thuoc mach hoc tap, nghien cuu mot ((hoc nhanh) OR (hoc nganh)) chong hoc ma hoi va phan van*.