Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan kiem co snippets" » "phan kien co snippets", "phan mem co snippets", "van kiem co snippets", "phan hiem cho snippets", "phan kiem mon 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 kiem co 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 kiem co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan kiem co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan kiem co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.