Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan gom cac snippets" » "phan ngoc cac snippets", "phan mem cac snippets", "phan bo cac snippets", "phan nom cac snippets", "phan ngon cac 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: (((("phan gom cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan gom cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan gom cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan gom cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.