Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung loi
dan thuoc » dang thuoc, dan thuc, ban thuoc
nhung hai » nhung khai, nhung bai, hung hai
thoi qua » hoi qua, thoi rua, thoi xua
thuoc bo » thuoc ho, hoc bo, thuoc ma
hai quan » tac quan
quan van » luan van, quan va, quan luan
tac dong » tac dung, tac trong, ha dong
dong hoc » dong co, dong luc
qua van » qua ban, qua san, qua va
hoc mot » hoc moi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung thoi qua van. hoc dan thuoc bo ) or ( nhung hai quan van. tac dong hoc mot ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung thoi qua van. hoc dan thuoc bo ) OR ( nhung hai quan van. tac dong hoc mot )).
• Adding a wildcard symbol may retrieve word variants: (( nhung thoi qua van. hoc dan thuoc bo ) or ( nhung hai quan van. tac dong hoc mot ))*.