Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang vi dot snippets" » "hang va dot snippets", "hanh vi dot snippets", "hang di dot snippets", "hang vi do snippets", "hang vi mot 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: (((("hang vi dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang vi dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang vi dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang vi dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.