Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van lu trong slippers" » "van luu trong slippers", "van luc trong slippers", "van luy trong slippers", "van du trong slippers", "van le trong slippers", "van lu trong slippery", "van lu trong 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 lu trong 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 lu trong slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van lu trong slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van lu trong slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.