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