Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung tri
nhung loi » nhung bai, nhung bi, nhung gi
quet lang » quan lang, biet lang
que lang » quan lang, que quang, que van
quan van » luan van, quan va, quan luan
hoc dung » hoc ung, hoc dan, tac dung
dung hoc » dong hoc, dung thuoc, trung hoc
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) or (nhung loi)) ((((que lang) OR (quet lang))) or (quan van)). hoc dung hoc mot~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung thoi) OR (nhung loi)) ((((que lang) OR (quet lang))) OR (quan van)). hoc dung hoc mot.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nhung thoi) or (nhung loi)) ((((que lang) OR (quet lang))) or (quan van)). hoc dung hoc mot".
• Adding a wildcard symbol may retrieve word variants: ((nhung thoi) or (nhung loi)) ((((que lang) OR (quet lang))) or (quan van)). hoc dung hoc mot*.