Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc chat cua snippets" » "luc nhat cua snippets", "luu chat cua snippets", "muc chat cua snippets", "luc chat va snippets", "luc chat huu 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 chat cua 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 chat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc chat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc chat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.