Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc do toni snippets" » "hoc de toni snippets", "hoc dao tong snippets", "hoc do trong snippets", "hoc doi toni snippets", "hoc co toni snippets", "hoc bo toni 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: (((("hoc do toni snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc do toni snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc do toni snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc do toni snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.