Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc qua ke snippets" » "goc qua ke snippets", "tac quan ke snippets", "hoc quan ke snippets", "toc bua ke snippets", "toc qua ky 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: (((("toc qua ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc qua ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc qua ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc qua ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.