Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc luong co snippets" » "duc luong co snippets", "luan luong co snippets", "quoc luong co snippets", "luc luong cho snippets", "luc luong cao snippets", "luc duong co 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: (((("luc luong co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc luong co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc luong co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc luong co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.