Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham moi le snippets" » "pham mo le snippets", "pham doi le snippets", "pham voi le snippets", "pham moi ve snippets", "pham moi la snippets", "pham moi ke 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 moi le 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 moi le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham moi le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham moi le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.