Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang dan he snippets" » "lang van he snippets", "tang dan he snippets", "dang dan he snippets", "lang dan ve snippets", "lang dan de snippets", "lang dan ke 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: (((("lang dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang dan he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang dan he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.