Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tiep qua cua snippets" » "tiep cua cua snippets", "tiep luan cua snippets", "hieu qua cua snippets", "tiep quan cua snippets", "tiep quang cua snippets", "tiep 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: (((("tiep 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: (((("tiep qua cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tiep qua cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tiep qua cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.