Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dia danh von snippets" » "dia ban von snippets", "gia dinh von snippets", "dia danh ngon snippets", "dia doanh van snippets", "dia danh vinh 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: (((("dia danh von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dia danh von snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dia danh von snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dia danh von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.