Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bang cau he snippets" » "hang cau he snippets", "bang cac he snippets", "nang cao he snippets", "bang cau ha snippets", "bang cau de 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: (((("bang cau he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bang cau he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bang cau he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bang cau he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.