Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nhanh » hoc nganh, hoc phan
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
thuoc va » thuc va, thuoc ma, thuong va
nhan tai » hang tai, van tai, toan tai
su cach » su sach, su cac, cuu cach
tu cach » tu cac
va nhan » van nhan, ca nhan, va phan
va hoi » xa hoi, va hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su cach) or (tu cach)) thoi tap, nghien cuu cong hoc nhanh khong thuoc va hoi va nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su cach) OR (tu cach)) thoi tap, nghien cuu cong hoc nhanh khong thuoc va hoi va nhan tai.
• Adding a wildcard symbol may retrieve word variants: ((su cach) or (tu cach)) thoi tap, nghien cuu cong hoc nhanh khong thuoc va hoi va nhan tai*.