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