Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thanh doc da snippets" » "than doc da snippets", "thanh do da snippets", "nhanh doc da snippets", "thanh doc dao snippets", "thanh doc va snippets", "thanh loc da 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: (((("thanh doc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thanh doc da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh doc da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh doc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.