Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nghien huu » nghien cuu, nguyen huu, nhiem huu
hoc nhanh » hoc nganh, hoc phan
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
danh nhan » doanh nhan, thanh nhan, benh nhan
sach hoc » cach hoc, sach hoi, mach hoc
tung hoc » trung hoc, tuong hoc, dung hoc
nhan tai » hang tai, van tai, toan tai
xa hoc » va hoc, xa hoa, ta hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach hoc tap, nghien huu tung hoc nhanh hoa hoc ((xa hoc) OR (xa hoi)) danh nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach hoc tap, nghien huu tung hoc nhanh hoa hoc ((xa hoc) OR (xa hoi)) danh nhan tai".
• Adding a wildcard symbol may retrieve word variants: thuat sach hoc tap, nghien huu tung hoc nhanh hoa hoc ((xa hoc) OR (xa hoi)) danh nhan tai*.