Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc nganh du snippets" » "luc ngan du snippets", "chuc nganh du snippets", "luat nganh du snippets", "luc nganh dau snippets", "luc nganh duoc snippets", "luc nganh dieu 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: (((("luc nganh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc nganh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc nganh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc nganh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.