Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang hieu he snippets" » "dang dieu he snippets", "dong hieu he snippets", "dung hieu he snippets", "dang hieu ve snippets", "dang hiem he snippets", "dang hieu 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: (((("dang hieu 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: (((("dang hieu he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang hieu he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang hieu he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.