Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham than so snippets" » "pham thanh so snippets", "pham thang so snippets", "pham tuan so snippets", "pham than sao snippets", "pham than vo snippets", "pham than go 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 than so 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 than so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham than so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham than so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.