Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sinh hoc can snippets" » "sinh hoc dan snippets", "sinh hoc cao snippets", "sinh hoc cac snippets", "dinh hoc can snippets", "minh hoc can snippets", "kinh hoc can 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: (((("sinh 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: (((("sinh hoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sinh hoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sinh hoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.