Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua kho de snippets" » "qua khoa de snippets", "quan khu de snippets", "sua khoa de snippets", "qua khoi de snippets", "qua kho me 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 kho de 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 kho de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua kho de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua kho de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.