Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhe cac moi snippets" » "he cac moi snippets", "nghe cao moi snippets", "nghe cnc moi snippets", "nhe cac mon snippets", "nhe cac toi snippets", "nhe cac thoi 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: (((("nhe cac moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhe cac moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhe cac moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhe cac moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.