Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach phap cp snippets" » "sach phat cp snippets", "sach nha cp snippets", "sach tham cp snippets", "sach phap ca snippets", "sach phap che snippets", "sach phap hop 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 phap cp 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 phap cp snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach phap cp snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach phap cp snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.