Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap thu vo snippets" » "phap thuc vo snippets", "phap tu vo snippets", "phap che vo snippets", "phap thu va snippets", "phap thu co 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 thu vo 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 thu vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap thu vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap thu vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.