Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach lo chat snippets" » "sach dao chat snippets", "sach doi chat snippets", "sach hoi chat snippets", "sach ly chat snippets", "sach li chat snippets", "sach lo chai 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: (((("sach lo chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach lo chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach lo chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach lo chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.