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