Perhaps you should try some spelling variations:
nguoi thong » nguoi muong, nguoi thanh, nguoi cong
nhung thi » nhung thoi, phung thi, nhung tri
quen vang » quan van, que lang, quen hanh
thong hoc » thuong hoc, tuong hoc, thong hoa
nhung gi » nhung bi, nhung bai
que van » qua van, quy van, quyet van
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 thi) or (nhung gi)) ((quen vang) OR (que van)). nguoi thong hoc mo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung thi) OR (nhung gi)) ((quen vang) OR (que van)). nguoi thong hoc mo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((nhung thi) or (nhung gi)) ((quen vang) OR (que van)). nguoi thong hoc mo*".