Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghe bac cau snippets" » "nghe ba cau snippets", "nghe bao cau snippets", "nghiep bac cau snippets", "nghe bach cau snippets", "nghe bac can 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: (((("nghe bac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghe bac cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghe bac cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghe bac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.