Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoan le du snippets" » "hoang le du snippets", "khoan le du snippets", "hon le du snippets", "hoan le duc snippets", "hoan le duy snippets", "hoan ly 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: (((("hoan le 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: (((("hoan le du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoan le du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoan le du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.