Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc sang doi snippets" » "lam sang doi snippets", "luc canh doi snippets", "duy sang doi snippets", "luc hang doi snippets", "luc nang doc snippets", "luc dung doi 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 sang doi 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 sang doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc sang doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc sang doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.