Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua tu cung snippets" » "qua tu chung snippets", "qua tu cuong snippets", "qua tuc cung snippets", "quat tu cung snippets", "qua su cung 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: (((("qua tu cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua tu cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua tu cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua tu cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.