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