Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach nay hoc snippets" » "sach hay hoc snippets", "sach vay hoc snippets", "sach nang hoc snippets", "sach day hoc snippets", "sach nhan hoc 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 nay hoc 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 nay hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach nay hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach nay hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.