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