Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc quan von snippets" » "hoc dan von snippets", "tac quan von snippets", "hoc phan von snippets", "hoc luan von snippets", "hoc quan van snippets", "hoc quan vuong 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: (((("hoc quan von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc quan von snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc quan von snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc quan von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.