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