Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac pha du snippets" » "bac ha du snippets", "bac nha du snippets", "ban pha du snippets", "bac pham duc snippets", "bac pham duy snippets", "bac phan duc 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: (((("bac pha 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: (((("bac pha du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac pha du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac pha du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.