Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bang cong he snippets" » "dang cong he snippets", "bang song he snippets", "hang cong he snippets", "bang cong che snippets", "bang cong ha snippets", "bang cong de 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: (((("bang cong he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bang cong he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bang cong he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bang cong he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.