Perhaps you should try some spelling variations:
nhung thong » chung thong, nhung chong, nhung phong
trong ngan » trong nganh, trong ngang, thong ngan
biet gian » viet giao, biet giua, bien giai
ngan dang » ngan hang, nhan dang, ngan danh
quan van » luan van, quan va, quan luan
bien gia » bien giai, bien giao, kien gia
que van » quy van, quyet van
qua van » qua ban, qua san, qua va

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

• Performing a fuzzy search may retrieve terms with similar spellings: nhung thong ((que van) or (((qua van) OR (quan van)))). ((biet gian) or (bien gia)) trong ngan dang~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nhung thong ((que van) OR (((qua van) OR (quan van)))). ((biet gian) OR (bien gia)) trong ngan dang.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nhung thong ((que van) or (((qua van) OR (quan van)))). ((biet gian) or (bien gia)) trong ngan dang".
• Adding a wildcard symbol may retrieve word variants: nhung thong ((que van) or (((qua van) OR (quan van)))). ((biet gian) or (bien gia)) trong ngan dang*.