Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van ha hoa snippets" » "van hoa hoa snippets", "van chat hoa snippets", "van hanh hoa snippets", "van hai hoa snippets", "van kha hoa snippets", "van nha hoa 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 ha hoa 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 ha hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van ha hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van ha hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.