Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sin cho xe snippets" » "san cho xe snippets", "sin ho xe snippets", "sang cho xe snippets", "sin cho he snippets", "sin cho xa 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: (((("sin cho xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sin cho xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sin cho xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sin cho xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.