Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"lap dan nhon snippets" » "lap da nhon snippets", "lap danh nhan snippets", "lap dan phong snippets", "lap dat nhon snippets", "lap ban nhon snippets", "hap dan nhon snippets", "lap dan nhon slippers"
"locating bug code snippets" » "locating bug code slippers", "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 dan nhon 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 dan nhon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lap dan nhon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lap dan nhon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.