Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vao mo cac snippets" » "vao moi cac snippets", "va mo cac snippets", "tao mo cac snippets", "vao o cac snippets", "vao co cac snippets", "vao do cac 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 mo 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 mo cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vao mo cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vao mo cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.