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