Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan ky ho snippets" » "pham ky ho snippets", "than ky ho snippets", "phap ky ho snippets", "phan ky hoa snippets", "phan ky hop snippets", "phan ky cho 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 ky ho 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 ky ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan ky ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan ky ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.