Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham anh le snippets" » "pham thanh le snippets", "pham minh le snippets", "pham van le snippets", "pham manh le snippets", "pham oanh le snippets", "pham anh ve 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 anh 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 anh le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham anh le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham anh le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.