Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi quy chu snippets" » "dot quy chu snippets", "doi duy chu snippets", "noi quy chu snippets", "doi quy chau snippets", "doi qua chu snippets", "doi quy che 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: (((("doi quy chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi quy chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi quy chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi quy chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.