Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi duy ca snippets" » "do duy ca snippets", "doi day ca snippets", "doi quy ca snippets", "doi duy can snippets", "doi duy cua snippets", "doi duy ba 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 duy ca 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 duy ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi duy ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi duy ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.