Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan sy du snippets" » "phan xay du snippets", "phan huy du snippets", "phan day du snippets", "phan ly du snippets", "phan so du snippets", "phan su du snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("phan sy du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan sy du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan sy du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan sy du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.