Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc phap doc snippets" » "hoc phap doc snippets", "duc phap doc snippets", "doc phan doc snippets", "doc phap hoc snippets", "doc phap coc snippets", "doc 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: (((("doc 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: (((("doc phap doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc phap doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc phap doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.