Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khe thi le snippets" » "ke thi le snippets", "nghe thi le snippets", "phe thai le snippets", "khe thi ly snippets", "khe thi lien 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: (((("khe thi le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khe thi le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khe thi le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khe thi le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.