Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc pham can snippets" » "duc pham can snippets", "luc tham can snippets", "thuc pham can snippets", "luc pham van snippets", "luc pham lan snippets", "luc pham ca 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 pham can 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 pham can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc pham can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc pham can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.