Perhaps you should try some spelling variations:
"nhung thoi quen van. hoi luan thuat xay" » "nhung thi quen van. hoi luan thuat xay", "phung thi quen van. hoi luan thuat xay", "nhung tri quen van. hoi luan thuat xay", "nhung thoi quen van. hoi luan thiet xay", "nhung thoi quen van. hoi luan thuc xay", "nhung thoi quen van. hoi luan chat xay", "nhung thoi quyen van. hoi luan thuat xay", "nhung thoi quan van. hoi luan thuat xay", "nhung thoi que van. hoi luan thuat xay", "nhung thoi quen van. hoa luan thuat xay", "nhung thoi quen van. hoc luan thuat xay", "nhung thoi quen van. khoa luan thuat xay"
"nhung loi que lang. hoi dap tuc tap" » "nhung bai que lang. hoi dap tuc tap", "nhung bi que lang. hoi dap tuc tap", "nhung gi que lang. hoi dap tuc tap", "nhung loi quet lang. hoi dap tuc tap", "nhung loi quan lang. hoi dap tuc tap", "nhung loi que quang. hoi dap tuc tap", "nhung loi que lang. hoi dao tuc tap", "nhung loi que lang. hoi tap tuc tap", "nhung loi que lang. hoi tap thuc tap"

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 thoi quen van. hoi luan thuat xay") or ("nhung loi que lang. hoi dap tuc tap"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("nhung thoi quen van. hoi luan thuat xay") OR ("nhung loi que lang. hoi dap tuc tap")).
• Removing quotes may allow a broader search: (( nhung thoi quen van. hoi luan thuat xay ) or ( nhung loi que lang. hoi dap tuc tap )).
• Adding a wildcard symbol may retrieve word variants: (("nhung thoi quen van. hoi luan thuat xay") or ("nhung loi que lang. hoi dap tuc tap"))*.