Perhaps you should try some spelling variations:
tran trong » gian trong, quan trong, tran hong
nhung tri » nhung bai, dung tri, nhung bi
nhung loi » nhung bai, nhung bi, nhung gi
biet tran » bien tran, viet tran, viet trang
cac tuan » cac thanh, cac thuat, cac tuong
quan va » quan vi, quan ha, quan ve
luan va » luan van, luat 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 tri) or (nhung loi)) ((quan va) or (luan va)). biet tran trong cac tuan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((nhung tri) OR (nhung loi)) ((quan va) OR (luan va)). biet tran trong cac tuan.
• Adding a wildcard symbol may retrieve word variants: ((nhung tri) or (nhung loi)) ((quan va) or (luan va)). biet tran trong cac tuan*.