Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua tang cac snippets" » "qua hang cac snippets", "qua mang cac snippets", "qua nang cac snippets", "qua bang cac snippets", "qua tang ca 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 tang cac 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 tang cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua tang cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua tang cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.