Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cheng men da snippets" » "cheng wen da snippets", "chen den da snippets", "chen wen da snippets", "cheng men dam snippets", "cheng men a snippets", "cheng men va 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: (((("cheng men da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cheng men da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cheng men da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cheng men da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.