Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan dieu co snippets" » "luan dieu co snippets", "han dieu co snippets", "nhan dieu co snippets", "lan dieu con snippets", "lan lieu co snippets", "lan deu co 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: (((("lan dieu 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: (((("lan dieu co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan dieu co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan dieu co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.