Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan hoc cap snippets" » "toan khoa cap snippets", "van hoc cap snippets", "hoa hoc cap snippets", "toan hoc cao snippets", "toan hoc tap snippets", "toan hoc cac 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: (((("toan hoc cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan hoc cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan hoc cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan hoc cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.