Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan lap che snippets" » "quan luan che snippets", "quang lam che snippets", "quan lang che snippets", "quan la che snippets", "quan lap phe snippets", "quan phap che 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: (((("quan lap che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan lap che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan lap che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan lap che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.