Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lap ninh cu snippets" » "lap trinh cu snippets", "lap nganh cu snippets", "bac ninh cu snippets", "lap dinh cu snippets", "lap ninh co snippets", "lap dinh cuu 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 ninh cu 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 ninh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap ninh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap ninh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.