Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van hau he snippets" » "van ha he snippets", "van hai he snippets", "van dau he snippets", "van phau he snippets", "van hau e snippets", "van hau le 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 hau he 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 hau he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hau he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hau he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.