Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"manh cua do snippets" » "doanh cua do snippets", "ban cua do snippets", "manh cua dao snippets", "manh cua bo snippets", "manh cua co 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 cua 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 cua do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( manh cua do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("manh cua do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.