Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"von nhan mo snippets" » "van nhan mo snippets", "hon nhan mo snippets", "von ngan mo snippets", "von nhan my snippets", "von phan mo snippets", "von nhap mon 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: (((("von nhan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("von nhan mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( von nhan mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("von nhan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.