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