Perhaps you should try some spelling variations:
chong thuoc » khong thuoc, cong thuc, hong phuoc
nhanh chong » thanh cong, khanh phong
hoc nhanh » hoc nganh, hoc phan
sach hoc » cach hoc, sach hoi, mach hoc
thuoc xa » thuoc ma, thuoc va, thuoc la
van nhan » van phan, van thanh, danh nhan
vu sach » vu bach, su sach, vu khach
va nhan » ca nhan, va phan, va nha
mo hoc » mon hoc, co hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach hoc tap, nghien cuu mo hoc nhanh chong thuoc xa hoi ((va nhan) or (van nhan)) van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach hoc tap, nghien cuu mo hoc nhanh chong thuoc xa hoi ((va nhan) OR (van nhan)) van.
• Adding a wildcard symbol may retrieve word variants: vu sach hoc tap, nghien cuu mo hoc nhanh chong thuoc xa hoi ((va nhan) or (van nhan)) van*.