Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai cau cong snippets" » "hai cac cong snippets", "hai cuu cong snippets", "hai cao cong snippets", "hai chau cong snippets", "hai chu cong snippets", "hai hau cong 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: (((("hai cau cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai cau cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai cau cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai cau cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.