Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"python using java snippets" » "python using data snippets"
"duc toan anh snippets" » "duc tan anh snippets", "duc ton anh snippets", "duc hoan anh snippets", "duc toan hanh snippets", "duc tuan anh snippets", "duc tran anh 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: (((("python using java snippets") or ("duc toan anh snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duc toan anh snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( duc toan anh snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("duc toan anh snippets"))) or ("locating bug code slippers"))*.