Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van co doi snippets" » "van cho doi snippets", "ban co doi snippets", "san co doi snippets", "van co dot snippets", "van co dai 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 co doi 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 co doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van co doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van co doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.