Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den phap doc snippets" » "dien phap doc snippets", "de phap doc snippets", "bien phap doc snippets", "den phap hoc snippets", "den phap coc snippets", "den phap dot 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: (((("den phap doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("den phap doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den phap doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den phap doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.