Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phat lam du snippets" » "phat am du snippets", "phap lam du snippets", "nhat lam du snippets", "phat lam dau snippets", "phat lap du snippets", "phat la du 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: (((("phat lam du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phat lam du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat lam du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat lam du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.