Perhaps you should try some spelling variations:
"locating bugs code slippers" » "locating bug code slippers", "locating bugs code snippets"
"python using java snippets" » "python using data snippets"
"dong co lan snippets" » "dong cao lan snippets", "dong co ban snippets", "dong co dan snippets", "cong co lan snippets", "dung co lan 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: (((("dong co lan snippets") or ("python using java snippets"))) or ("locating bugs code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong co lan snippets") OR ("python using java snippets"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( dong co lan snippets ) or ( python using java snippets ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dong co lan snippets") or ("python using java snippets"))) or ("locating bugs code slippers"))*.