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