Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van cong xac slippers" » "van dong xac slippers", "van phong xac slippers", "phan cong xac slippers", "van cong tac slippers", "van cong xay slippers", "van cong cac slippers", "van cong xac slippery", "van cong xac grippers"
"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: (((("van cong xac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van cong xac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van cong xac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van cong xac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.