Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan co long snippets" » "phan bo long snippets", "phan cong long snippets", "phan cac long snippets", "phan co dong snippets", "phan ca long 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: (((("phan co long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan co long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan co long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan co long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.