Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi hoc ca snippets" » "doi hoac ca snippets", "dai hoc ca snippets", "hoi hoc ca snippets", "doi hoc cao snippets", "doi hoc cua snippets", "doi hoc cac 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 hoc 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 hoc ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi hoc ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi hoc ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.