Perhaps you should try some spelling variations:
quen thuat » quen thu
nhung cau » chung cu, nhung bai, nhu cau
gian truc » gian truoc, giay truc, gian tru
nhung lam » nhung nam, nhung lan, nhung cam
thuat bai » thuat bao, thuyet bai, thuat xay
cau quan » cau qua, cao quan, ca quan
quan van » luan van, quan va, quan luan
truc lap » truc va, truc may, tu lap
lam quan » lam quang, la quan, lac quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung cau quan van. thoi gian truc lap ) OR ( nhung lam quan van. thoi quen thuat bai ))~.
• Adding a wildcard symbol may retrieve word variants: (( nhung cau quan van. thoi gian truc lap ) or ( nhung lam quan van. thoi quen thuat bai ))*.