Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con than vo snippets" » "cong thanh vo snippets", "cong thang vo snippets", "son thanh vo snippets", "con than va snippets", "con than doc snippets", "con than hoc 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: (((("con than 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: (((("con than vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con than vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con than vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.