Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap dam don snippets" » "phap day don snippets", "phap lam don snippets", "phap dao don snippets", "phap dam dong snippets", "phap dam duong snippets", "phap lam dong 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 dam don 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 dam don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap dam don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap dam don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.