Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"manh long do snippets" » "manh cuong do snippets", "thanh long do snippets", "manh tuong do snippets", "manh luong do snippets", "manh dong do snippets", "manh long d 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: (((("manh long do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("manh long do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh long do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh long do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.