Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nghi chat co snippets" » "nghe chat co snippets", "nghiem chat co snippets", "nghia nhat co snippets", "nghi thuat co snippets", "nghi chat cua snippets", "nghi chat deo 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: (((("nghi chat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nghi chat co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nghi chat co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nghi chat co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.