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