Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tay co snippets" » "van tai co snippets", "van tan co snippets", "van tam co snippets", "van ty co snippets", "van cay co snippets", "van tay o 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: (((("van tay co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van tay co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tay co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tay co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.