Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap hoach du snippets" » "lap hoat du snippets", "lap doanh du snippets", "lap hoach su snippets", "lap hoach de snippets", "lap hoach do 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: (((("lap hoach 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: (((("lap hoach du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap hoach du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap hoach du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.