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