Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cheng san co snippets" » "cong san co snippets", "cheng lin co snippets", "cheng wen co snippets", "cheng ban co snippets", "cheng sang cho 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 san co 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 san co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cheng san co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cheng san co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.