Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam lanh can snippets" » "lam banh can snippets", "lam linh can snippets", "lap lanh can snippets", "lam lanh bang snippets", "lam lanh cong snippets", "lam lanh manh 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: (((("lam lanh 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: (((("lam lanh can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam lanh can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam lanh can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.