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