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