Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vuc nang hoc snippets" » "cuc nang hoc snippets", "vu nang hoc snippets", "chuc nang hoc snippets", "vuc nang doc snippets", "vuc nang luc snippets", "vuc dong hoc 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: (((("vuc nang hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vuc nang hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vuc nang hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vuc nang hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.