Perhaps you should try some spelling variations:
quen thanh » quan thanh, quyet thanh, quang thanh
nhung gi » nhung bi
hien cau » khien cau, thien cau, hien cac
bai quan » hai quan, ban quan, mai quan
quan van » luan van, quan va, quan luan
hien cam » hien cac, hien giam, hien tham
gi quen » si quyen

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( nhung gi quen thanh. biet the hien cau truc ) or ( nhung bai quan van. biet the hien cam xuc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( nhung gi quen thanh. biet the hien cau truc ) OR ( nhung bai quan van. biet the hien cam xuc )).
• Adding a wildcard symbol may retrieve word variants: (( nhung gi quen thanh. biet the hien cau truc ) or ( nhung bai quan van. biet the hien cam xuc ))*.