Perhaps you should try some spelling variations:
"nhung bai que van. biet the hien tham thuc" » "nhung bai que van. biet the hien thuan thuc", "nhung bai que van. biet the phien them thuc", "nhung bai que van. biet the hien phap thuc", "nhung bai que van. biet the hien nham thuc", "nhung bai que van. biet the hien pham thuc", "nhung bai que van. biet the hien tam thuc", "nhung bai qua van. biet the hien tham thuc", "nhung bai quy van. biet the hien tham thuc", "nhung bai quyet van. biet the hien tham thuc"
"nhung noi quan van. biet the hien cac truc" » "nhung loi quan van. biet the hien cac truc", "nhung nguoi quan van. biet the hien cac truc", "nhung nghi quan van. biet the hien cac truc", "nhung noi quang van. biet the hien cac truc", "nhung moi quan van. biet the hien cac truc", "nhung noi luan van. biet the hien cac truc", "nhung noi quan va. biet the hien cac truc", "nhung noi quan luan. biet the hien cac truc", "nhung noi quan van. biet the thien cac truc", "nhung noi quan van. biet the vien cac truc", "nhung noi quan van. biet the hieu cac truc", "nhung noi quan van. biet the hien cau truc", "nhung noi quan van. biet the hien cac tru", "nhung noi quan van. biet the hien cac trung"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("nhung bai que van. biet the hien tham thuc") or ("nhung noi quan van. biet the hien cac truc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung bai que van. biet the hien tham thuc") OR ("nhung noi quan van. biet the hien cac truc")).
• Removing quotes may allow a broader search: (( nhung bai que van. biet the hien tham thuc ) or ( nhung noi quan van. biet the hien cac truc )).
• Adding a wildcard symbol may retrieve word variants: (("nhung bai que van. biet the hien tham thuc") or ("nhung noi quan van. biet the hien cac truc"))*.