Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua ninh he snippets" » "quan ninh he snippets", "qua kinh he snippets", "quy ninh he snippets", "qua hinh he snippets", "qua tinh he snippets", "qua ninh ha 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 ninh 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: (((("qua ninh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua ninh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua ninh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.