Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap lanh lon snippets" » "lam lanh lon snippets", "lap doanh lon snippets", "lap nganh lon snippets", "lap manh long snippets", "lap lanh cong snippets", "lap han lon 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 lanh lon 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 lanh lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap lanh lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap lanh lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.