Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap va hoe snippets" » "phap vat hoe snippets", "pham va hoe snippets", "pham van hoe snippets", "phap van hoe snippets", "phap va hoc snippets", "phap va 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 va hoe 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 va hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap va hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap va hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.