Perhaps you should try some spelling variations:
tuong thuoc » luong thuoc, thuong thuc, dung thuoc
khuc quyet » khai quyet, khuc huyen
nhung thoi » nhung thi, phung thi, nhung loi
doi tuong » moi truong, doi song
quen luan » quan luan, bien luan, dien luan
thuoc ma » hoc ma, duoc ma
van dung » van dong, xay dung, tin dung
dung hoc » dong hoc, dung thuoc, trung hoc
hoc mon » hoc moi, hoc mot, hoc cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung khuc quyet van. doi tuong thuoc ma ) or ( nhung thoi quen luan. van dung hoc mon ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung khuc quyet van. doi tuong thuoc ma ) OR ( nhung thoi quen luan. van dung hoc mon )).
• Adding a wildcard symbol may retrieve word variants: (( nhung khuc quyet van. doi tuong thuoc ma ) or ( nhung thoi quen luan. van dung hoc mon ))*.