Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong hieu co snippets" » "dong hieu co snippets", "cong dieu co snippets", "long hieu co snippets", "cong hieu so snippets", "cong hieu bo snippets", "cong hieu ca 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: (((("python using java snippets") or ("cong hieu co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cong hieu co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cong hieu co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cong hieu co snippets"))) or ("locating bug code snippets"))*.