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 slippery" » "python using data slippery"
"dong cao dan snippets" » "duong cao dan snippets", "dong co dan snippets", "dong cho dan snippets", "dong cao dang snippets", "dong cao danh snippets", "dong cac dan 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 cao dan snippets") or ("python using java slippery"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cao dan snippets") OR ("python using java slippery"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dong cao dan snippets ) or ( python using java slippery ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cao dan snippets") or ("python using java slippery"))) or ("locating bug code slippers"))*.