Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong mo ke snippets" » "cong mot ke snippets", "cong so ke snippets", "cong co ke snippets", "cong moi ke snippets", "cong do ke 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: (((("cong mo ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong mo ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong mo ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong mo ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.