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