Perhaps you should try some spelling variations:
"nhung cau chieu snippets" » "nhung cau code snippets", "chung cu chieu snippets", "nhung bai chieu snippets", "nhu cau chieu snippets", "nhung cac chieu snippets", "nhung cau chiu snippets", "nhung cao hieu snippets"
"locating bug core snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"

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: (((("dung java java snippets") or ("nhung cau chieu snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("nhung cau chieu snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( nhung cau chieu snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("nhung cau chieu snippets"))) or ("locating bug core snippets"))*.