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