Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don kien co snippets" » "doi kien co snippets", "don dien co snippets", "don hien co snippets", "don lien co snippets", "don vien co snippets", "don khien cho 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: (((("don kien 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: (((("don kien co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don kien co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don kien co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.