Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap min ho snippets" » "phap mon ho snippets", "pham minh ho snippets", "phan minh ho snippets", "phap sin ho snippets", "phap bin ho snippets", "phap minh hoa 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: (((("phap min ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap min ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap min ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap min ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.