Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tich cac snippets" » "di tich cac snippets", "doi tinh cac snippets", "doi trinh cac snippets", "doi tich va snippets", "doi tich bao 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: (((("doi tich 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: (((("doi tich cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tich cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tich cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.