Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"von cua da snippets" » "vong cua da snippets", "vuon cua da snippets", "con cua da snippets", "von cua dan snippets", "von cua dai snippets", "von cua dam 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: (((("von cua da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("von cua da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( von cua da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("von cua da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.