Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu duc long snippets" » "chu duc cong snippets", "chu duc dong snippets", "chu duc hong snippets", "thu duc long snippets", "chua duoc long snippets", "cuu duoc long 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: (((("chu duc long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu duc long snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu duc long snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu duc long snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.