Perhaps you should try some spelling variations:
nhung thoi » nhung thi, phung thi, nhung tri
nhung loi » nhung bai, nhung bi, nhung gi
quen vang » quan van, que van, que lang
biet gian » viet giao, biet giua, bien gia
gian tong » gian trong, gian song, gian dong
tong quan » thong quan, tong luan, luong quan
quan than » quan thanh, qua than, quang thanh

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)) quen vang. biet gian tong quan than~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung thoi) OR (nhung loi)) quen vang. biet gian tong quan than.
• Adding a wildcard symbol may retrieve word variants: ((nhung thoi) or (nhung loi)) quen vang. biet gian tong quan than*.