Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vao hang di snippets" » "vao hoang di snippets", "van hang di snippets", "va hang di snippets", "vao hang doi snippets", "vao hang vi snippets", "vao hang dien 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 hang di 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 hang di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vao hang di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vao hang di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.