Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
nghien cua » nghien cuu, nghiep cua, nghiep vua
coc nhanh » hoc nhanh, doc nhanh, cach nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cong coc » cong cuoc, cong cac, cong co
thuoc xa » thuoc ma, thuoc va, thuoc tai
thuoc la » thuoc ma, thuoc va, thuoc tai
nhan tai » hang tai, van tai, toan tai
vu sach » vu bach, su sach, vu khach
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: vu sach hoc tap, nghien cua cong coc nhanh khong ((thuoc xa) OR (thuoc la)) hoi ca nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach hoc tap, nghien cua cong coc nhanh khong ((thuoc xa) OR (thuoc la)) hoi ca nhan tai".
• Adding a wildcard symbol may retrieve word variants: vu sach hoc tap, nghien cua cong coc nhanh khong ((thuoc xa) OR (thuoc la)) hoi ca nhan tai*.