Perhaps you should try some spelling variations:
nghiem thuc » nghiem thuoc, nghiep thuc, nhiem thuc
khong thuoc » khang thuoc, hong phuoc, dong thuoc
thuc cong » thuoc cong, thu cong, chuc cong
nhoc nhan » ngoc nhan, nhac nhan, thuoc nhan
sach hoc » cach hoc, sach hoi, mach hoc
hoc nhan » hoc nhanh, hoc phan, hoc chan
thuoc xa » thuoc ma, thuoc va, thuoc la
nhan tai » hang tai, van tai, toan tai
su sach » so sach, vu sach
hoi ca » hoi cua, hoi cac, hoi cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach hoc tap, nghiem thuc cong ((hoc nhan) or (nhoc nhan)) khong thuoc xa hoi ca nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghiem thuc cong ((hoc nhan) OR (nhoc nhan)) khong thuoc xa hoi ca nhan tai.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghiem thuc cong ((hoc nhan) or (nhoc nhan)) khong thuoc xa hoi ca nhan tai*.