Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai tan line snippets" » "hai tran linh snippets", "hai than linh snippets", "hai van linh snippets", "hai van line snippets", "hai quan line 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: (((("hai tan line snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai tan line snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai tan line snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai tan line snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.