Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhat anh me snippets" » "nhat hanh me snippets", "nhat minh me snippets", "nhat ban me snippets", "nhat anh ma snippets", "nhat anh ve snippets", "nhat anh le 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 me 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 me snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhat anh me snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat anh me snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.