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