Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi van ho snippets" » "vi van ho snippets", "voi can ho snippets", "doi van ho snippets", "voi van hoa snippets", "voi van hoc snippets", "voi van hoe 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: (((("voi van ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi van ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi van ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi van ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.