Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua can cho snippets" » "cua cac cho snippets", "cua ban cho snippets", "cua dan cho snippets", "cua chan cho snippets", "cua cap cho snippets", "cua cao cho 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: (((("cua can cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua can cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua can cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua can cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.