Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap dan soc snippets" » "phap day soc snippets", "phap han soc snippets", "phap van soc snippets", "phap dan toc snippets", "phap dan hoc snippets", "phap dan so 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: (((("phap dan soc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap dan soc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap dan soc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap dan soc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.