Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham chuc de snippets" » "pham duc de snippets", "pham huu de snippets", "kham chua de snippets", "pham chu de snippets", "pham chuc ke snippets", "pham chuc dao 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: (((("pham chuc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham chuc de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham chuc de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham chuc de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.