Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat thien du snippets" » "dat tien du snippets", "mat thien du snippets", "doan thien du snippets", "dat hien du snippets", "dat thien tu snippets", "dat thien su 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: (((("dat thien du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat thien du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat thien du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat thien du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.