Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
nhanh khong » nhanh chong, nganh khong, nhan khong
hoc nhanh » hoc nganh, hoc phan
thu sinh » thu minh, thu kinh, thuoc sinh
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
thuoc ma » hoc ma, duoc ma
van gian » van giang, dan gian, van giao
va gian » va gianh, va giai, va gia
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sinh hoc tap, nghien cuu dong hoc nhanh khong thuoc ma hoi ((va gian) or (van gian)) dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sinh hoc tap, nghien cuu dong hoc nhanh khong thuoc ma hoi ((va gian) OR (van gian)) dan.
• Adding a wildcard symbol may retrieve word variants: thu sinh hoc tap, nghien cuu dong hoc nhanh khong thuoc ma hoi ((va gian) or (van gian)) dan*.