Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long ha hoc snippets" » "dong ha hoc snippets", "cong ha hoc snippets", "dong hoa hoc snippets", "long hoa hoc snippets", "long nha hoc snippets", "long va 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: (((("long ha 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: (((("long ha hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long ha hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long ha hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.