Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau trieu de snippets" » "cac trieu de snippets", "cau triet de snippets", "chua trieu de snippets", "cau trieu do snippets", "cau trieu le snippets", "cau trieu dai 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: (((("cau trieu 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: (((("cau trieu de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau trieu de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau trieu de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.