Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van cu che snippets" » "van cau che snippets", "van chu che snippets", "van cua che snippets", "van cuu che snippets", "van co che 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 cu che 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 cu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van cu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van cu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.