Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dinh duc le snippets" » "minh duc le snippets", "ninh duc le snippets", "tinh duc le snippets", "dinh tuc le snippets", "dinh luc le 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: (((("dinh duc 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: (((("dinh duc le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh duc le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh duc le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.