Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vang cao hon snippets" » "nang cao hon snippets", "lang cao hon snippets", "vang tao hon snippets", "vang cao son snippets", "vang cao hoc snippets", "vang ca hon 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: (((("vang cao hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vang cao hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vang cao hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vang cao hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.