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