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