Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi can doc snippets" » "voi cac doc snippets", "voi cong doc snippets", "voi hang doc snippets", "voi nang doc snippets", "voi than doc snippets", "voi can dong 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: (((("voi can 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: (((("voi can doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi can doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi can doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.