Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nghien huu » nghien cuu, nguyen huu, nhiem huu
huu trung » huu tung, hu trung, he trung
trung hoc » trung quoc
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
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 trung hoc nhanh hoa hoc ((xa hoc) or (xa hoi)) danh nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach hoc tap, nghien huu trung 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 trung hoc nhanh hoa hoc ((xa hoc) or (xa hoi)) danh nhan tai*.