Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vao thuc can snippets" » "va thuc can snippets", "bao thuc can snippets", "van thuc can snippets", "vao thuc chan snippets", "vao thuc dan snippets", "vao thuc van 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 thuc can 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 thuc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vao thuc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vao thuc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.