Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat anh de snippets" » "nhat hanh de snippets", "nhat minh de snippets", "nhat ban de snippets", "nhat anh d snippets", "nhat anh ve 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: (((("nhat anh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat anh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat anh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat anh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.