Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con can nghe snippets" » "con van nghe snippets", "con cap nghe snippets", "con cac nghe snippets", "co can nghe snippets", "con ban nghe 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: (((("con can nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con can nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con can nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con can nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.