Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang cong he snippets" » "dang cong he snippets", "hang cong he snippets", "bang cong he snippets", "sang cong che snippets", "sang cong ha snippets", "sang 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: (((("sang 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: (((("sang cong he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang cong he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang cong he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.