Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den qua lon snippets" » "den xua lon snippets", "dien quan lon snippets", "dan quan lon snippets", "den qua loi snippets", "den qua con snippets", "den quan long 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: (((("den qua lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den qua lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den qua lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den qua lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.