Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan van bot snippets" » "luan van bot snippets", "lang van bot snippets", "tan van bot snippets", "lan van bon snippets", "lan van hoat snippets", "lan dang bot 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: (((("lan van bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan van bot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan van bot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan van bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.