Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach doi loc snippets" » "sach hoi loc snippets", "sach moi loc snippets", "sach dao loc snippets", "sach doi cuoc snippets", "sach doi hoac 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 doi loc 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 doi loc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach doi loc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach doi loc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.