Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van binh toc snippets" » "van minh toc snippets", "van dinh toc snippets", "van linh toc snippets", "van binh truoc snippets", "van binh tan snippets", "van dinh toi 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: (((("python using java snippets") or ("van binh toc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van binh toc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van binh toc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van binh toc snippets"))) or ("locating bug code snippets"))*.