Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"web mang dau snippets" » "web bang dau snippets", "ke mang dau snippets", "web ban dau snippets", "web hang dau snippets", "web xang dau snippets", "web nang dau snippets", "web mang dau 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: (((("web mang dau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("web mang dau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( web mang dau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("web mang dau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.