Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van van bon snippets" » "van ban bon snippets", "tan van bon snippets", "san van bon snippets", "van van ban snippets", "van van dong snippets", "van van cong 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: (((("van van bon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van van bon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van van bon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van van bon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.