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