Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam dieu can snippets" » "lan dieu can snippets", "dam dieu can snippets", "la dieu can snippets", "lam dieu hanh snippets", "lam tiep can snippets", "lam dieu cua 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 dieu 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 dieu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam dieu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam dieu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.