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