Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc cac moi snippets" » "hoc cac moi snippets", "tuc cac moi snippets", "ton cac moi snippets", "toc cac mon snippets", "toc cac toi snippets", "toc 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: (((("toc 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: (((("toc cac moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc cac moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc cac moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.