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