Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"pham thi pan snippets" » "pham thi lan snippets", "pham thi dan snippets", "pham thi san snippets", "phan thi pan snippets", "pham thi pan slippers"
"locating bug code snippets" » "locating bug code slippers", "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 thi pan 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 thi pan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham thi pan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham thi pan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.