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