Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"minh van lu snippets" » "dinh van lu snippets", "minh va lu snippets", "vinh van lu snippets", "minh van luc snippets", "minh van du snippets", "minh van le snippets", "minh van lu slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("minh van lu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("minh van lu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( minh van lu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("minh van lu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.