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