Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hiem du snippets" » "phan hieu du snippets", "phan kiem du snippets", "phan thiet du snippets", "phan hien du snippets", "phan diem du snippets", "phan hiem duoc 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 hiem du 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 hiem du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hiem du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hiem du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.