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