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