Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van thi code snippets" » "van thi cong snippets", "van thi hoe snippets", "van tai code snippets", "dan thi code snippets", "van thu code snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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 ("van thi code snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van thi code snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van thi code snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van thi code snippets"))) or ("locating bug code slippers"))*.