Perhaps you should try some spelling variations:
thuat mach » thuat sach, thuat tach, thuyet mach
nghiep cua » nghiep vua, nghiep luan, nghien cuu
phan chong » phan cong, phan hong, phap chong
mach hoc » cach hoc, dich hoc, anh hoc
hoc phan » hoc dan, hoc pho
thuoc xa » thuoc ma, thuoc va, thuoc tai
thuoc la » thuoc ma, thuoc va, thuoc tai
nhan tai » hang tai, van tai, toan tai
mot hoc » mon hoc, mo hoc, mot goc
va nhan » van nhan, ca nhan, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat mach hoc tap, nghiep cua mot hoc phan chong ((thuoc xa) or (thuoc la)) hoi va nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat mach hoc tap, nghiep cua mot hoc phan chong ((thuoc xa) OR (thuoc la)) hoi va nhan tai.
• Adding a wildcard symbol may retrieve word variants: thuat mach hoc tap, nghiep cua mot hoc phan chong ((thuoc xa) or (thuoc la)) hoi va nhan tai*.