Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hau dien cac snippets" » "thau dien cac snippets", "huu dien cac snippets", "dau dien cac snippets", "hau vien cac snippets", "hau dien cuc snippets", "hau dien sach 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: (((("hau dien cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hau dien cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hau dien cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hau dien cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.