Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi cua he snippets" » "chi cuc he snippets", "khi cua he snippets", "cuoi cua he snippets", "chi cua che snippets", "chi cua te snippets", "chi cua le 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: (((("chi cua he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi cua he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi cua he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi cua he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.