Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc dao hoan snippets" » "hoc dao doanh snippets", "hoc vao hoang snippets", "hoc do hoa snippets", "hoc dan hoan snippets", "hoc cao hoan snippets", "hoc dai 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 dao 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 dao hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc dao hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc dao hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.