Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van van phe snippets" » "van ban phe snippets", "tan van phe snippets", "san van phe snippets", "van van phu snippets", "van va phe snippets", "van van he 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 phe 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 phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van van phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van van phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.