Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu ky cho snippets" » "hieu ky cho snippets", "dieu ky cho snippets", "lieu xay cho snippets", "lieu ke cho snippets", "lieu ly 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: (((("lieu ky 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: (((("lieu ky cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu ky cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu ky cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.