Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha du hoc snippets" » "pham duc hoc snippets", "pham duy hoc snippets", "phan duc hoc snippets", "pha tu hoc snippets", "pha duoc hoc 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 du hoc 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 du hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha du hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha du hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.