Perhaps you should try some spelling variations:
nhung thoi » phung thi, nhung loi, nhung tri
thoi quan » thoi quen, thi quan, thong quan
nhung thi » phung thi, nhung tri, nhung chi
tac dung » sach dung, xay dung, tin dung
dung coc » dung co, dung cac, dung con
thi luan » thi lan, thi xuan, thi loan
luan han » luan hoan, luan phan, luan van
hoc dung » hoc ung, hoc dan, hoc cong
dung hoc » dong hoc, dung thuoc, trung hoc
quan va » quan vi, quan ha, luan va
coc mo » uoc mo, co mo, toc mo
hoc mo » hoc moi, hoc mot, hoc mon

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 quan va. tac dung coc mo ) or ( nhung thi luan han. hoc dung hoc mo ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung thoi quan va. tac dung coc mo ) OR ( nhung thi luan han. hoc dung hoc mo )).
• Adding a wildcard symbol may retrieve word variants: (( nhung thoi quan va. tac dung coc mo ) or ( nhung thi luan han. hoc dung hoc mo ))*.