Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham bao doc snippets" » "pham giao doc snippets", "pham van doc snippets", "pham tai doc snippets", "pham bao goc snippets", "pham bai doc snippets", "pham bao 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: (((("pham bao doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham bao doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham bao doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham bao doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.